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What Fibromyalgia Reveals About the Endocannabinoid System and Why It Matters

endocannabinoids
When the System Breaks — What Fibromyalgia Reveals About the Endocannabinoid System | The Certified
The Grower's Connect
ECS Series · Part 3

Continuing the endocannabinoid system series. Previously: Anandamide — Unlocking the Bliss Molecule and Your Body Makes Its Own Cannabis — And Running Is the Key That Unlocks It. This week: what happens when the system breaks.

The Endocannabinoid System · Part 3 · Clinical Deficiency

When the System Breaks — What Fibromyalgia Reveals About the Endocannabinoid System and Why It Matters

A 2025 peer-reviewed review has mapped the relationship between fibromyalgia and the endocannabinoid system in detail. The findings suggest that what millions experience as widespread chronic pain may be, at least in part, a disease of endocannabinoid deficiency.

The Grower's Connect  ·  2025  ·  11 min read
6.4% of US adults affected by fibromyalgia
94% of patients reported pain relief with cannabis
35% Reduction in opioid use when combined with cannabis
Listen to this article When the System Breaks — What Fibromyalgia Reveals About the Endocannabinoid System

Over the past two weeks we have been building a picture of the endocannabinoid system from the inside out. We looked at anandamide — the bliss molecule — what it is, where it comes from, and what it does in the brain and body. Then we looked at what happens when you run at the right intensity, and how moderate exercise triggers your body's own endocannabinoid release — reducing anxiety, elevating mood, and producing effects that closely mirror what cannabis achieves pharmacologically.

This week we arrive at the darker side of the same story. What happens when the endocannabinoid system doesn't work properly? What does a chronically dysregulated endocannabinoid system look like from the outside — as experienced by a real person, in a real body, every day?

A 2025 review published in Current Issues in Molecular Biology by Mario García-Domínguez at the Universidad de Navarra provides one of the most comprehensive analyses to date of the endocannabinoid system's role in fibromyalgia. It connects everything we have covered in the last two weeks — the receptors, the molecules, the signalling cascades — to a clinical condition affecting hundreds of millions of people worldwide. Understanding this connection matters for anyone trying to understand what cannabis is actually doing in the human body, and why.

What Fibromyalgia Is — And Why It Has Been So Hard to Explain

Fibromyalgia is a chronic condition characterised by widespread musculoskeletal pain, persistent fatigue, sleep disturbances, and cognitive impairments — a cluster that includes difficulty with memory and concentration often called fibrofog. The pain varies in intensity and location and is linked to sensitivity at specific areas known as tender points.

Widespread Pain

Musculoskeletal pain across multiple body regions, linked to sensitivity at tender points. Varies in intensity and location, often described as burning, aching, or stabbing.

Persistent Fatigue

Chronic exhaustion that is not relieved by rest, often described as profound and disproportionate to any physical activity undertaken.

Sleep Disturbance

Non-restorative sleep, difficulty maintaining sleep, and frequent waking — creating a cycle where poor sleep worsens pain sensitivity and pain disrupts sleep.

Fibrofog

Cognitive impairments including memory loss, difficulty concentrating, and slowed mental processing — often as debilitating as the physical symptoms.

It affects 6.4% of the US population and between 2.4% and 3.3% in Europe and South America — significantly more prevalent in women. It is not rare. It is one of the most common chronic pain syndromes on the planet, affecting hundreds of millions of people globally.

What has made fibromyalgia so difficult to treat, and historically so difficult to take seriously in medical settings, is that its underlying mechanisms have resisted clear explanation. There is no obvious tissue damage visible on scans. There is no single biomarker. For decades, patients were told the pain was psychological. The condition was real and debilitating, but the biology behind it was opaque. What is now emerging from the research is a different picture. The problem may not be in the joints or muscles themselves. The problem may be in the system responsible for regulating how pain signals are processed, amplified, and dampened — and that system is the endocannabinoid system.

The Clinical Endocannabinoid Deficiency Hypothesis

The central theoretical framework the review examines is called Clinical Endocannabinoid Deficiency — CECD. The hypothesis is straightforward: in some individuals, the endocannabinoid system operates chronically below its optimal level. The system that is supposed to modulate pain, regulate sleep, stabilise mood, and dampen inflammation is not producing enough, not signalling effectively, or not maintaining adequate receptor sensitivity. The result is a body that cannot properly regulate its own experience of pain and discomfort.

This hypothesis would explain much of what makes fibromyalgia so puzzling. If the problem is systemic underfunction of the endocannabinoid system — rather than localised tissue damage — then of course there would be no obvious structural abnormality on imaging. The problem would be functional, not structural. The pain would be real, widespread, and variable because the system responsible for dampening and contextualising pain signals across the entire nervous system is impaired.

"If the problem is a systemic underfunction of the endocannabinoid system, then of course there is no structural abnormality on imaging. The problem is functional. The pain is real — the dampening system is what's failing."

The CECD hypothesis also directly connects to the synaptic signalling mechanism we described in the anandamide piece. Endocannabinoids work as retrograde messengers — released by postsynaptic neurons, travelling backwards across the synapse, and binding to presynaptic CB1 receptors to suppress the release of glutamate and other excitatory neurotransmitters. This mechanism is the brain's primary tool for preventing pain signals from being over-amplified. If that tool is impaired, pain signals propagate more freely. The threshold for what feels painful is lowered. Everything hurts more than it should.

What the Endocannabinoid System Is Actually Doing in Pain Regulation

The review provides a detailed account of the endocannabinoid system's role in pain modulation that clarifies precisely why a deficiency in this system would produce the pattern of symptoms seen in fibromyalgia.

ECS Pain Regulation — Key Mechanisms Involved in Fibromyalgia

  • Spinal Cord CB1 receptors are present in the dorsal horn — the primary relay station for pain signals entering the central nervous system. Endocannabinoid signalling here suppresses pain transmission before it reaches the brain.
  • Fascial Tissue CB1 and CB2 receptors have been identified in fascial tissue — the connective network covering and connecting muscles throughout the body. A direct mechanism by which ECS deficiency could produce the diffuse musculoskeletal pain of fibromyalgia.
  • Joint Protection CB1 activation blocks inflammatory degradation of connective tissues. When synovial cells are exposed to the inflammatory cytokine TNF-alpha, they secrete enzymes that degrade cartilage. Anandamide inhibits this process — ECS deficiency removes this protective mechanism.
  • Retrograde Brake Endocannabinoids released by postsynaptic neurons travel backwards across synapses to suppress further excitatory neurotransmitter release. This is the nervous system's volume control on pain. When this brake is compromised, pain sensitisation is amplified system-wide.

The Paradox in the Blood Data

Here is where the research becomes genuinely counterintuitive — and requires careful interpretation.

Several studies cited in the review have measured circulating endocannabinoid levels in fibromyalgia patients and found them to be elevated, not depleted. Anandamide concentrations were significantly higher in fibromyalgia patients than in healthy controls. Levels of 2-AG, OEA, PEA, and SEA — related endocannabinoid-like molecules — were also increased. At first glance this seems to contradict the deficiency hypothesis. If endocannabinoid levels are higher in fibromyalgia patients, how can the condition be caused by deficiency?

The Compensatory Mechanism

The review interprets the elevated blood levels as a probable compensatory response — the system producing more of these molecules in response to inadequate function at the receptor level. The same phenomenon is well known in other hormonal systems: when receptors become less responsive, the body increases production of the signalling molecule in an attempt to compensate. The elevated circulating levels may reflect not abundance but distress — a body working harder than it should to achieve an effect it is struggling to produce.

This interpretation is also consistent with the exercise research from last week. Long-term regular exercise was associated with decreased baseline endocannabinoid levels — the body adapting by upregulating FAAH, the enzyme that degrades anandamide, in response to repeated elevation. A body chronically producing excess endocannabinoids as a compensatory response may develop a similar pattern of accelerated degradation, creating a cycle that perpetuates the deficiency rather than correcting it.

The Menstrual Cycle Connection

One of the most striking findings in the review involves the relationship between the menstrual cycle and fibromyalgia diagnosis. It illuminates the endocannabinoid system's hormonal sensitivity in ways with real clinical implications.

Anandamide levels fluctuate across the menstrual cycle in healthy women. During the follicular phase — the first half — AEA levels are relatively high. During the luteal phase — the second half — progesterone upregulates FAAH, the anandamide-degrading enzyme, causing AEA levels to fall. A study found that this drop in anandamide during the luteal phase was associated with significantly increased sensitivity to pressure pain. And in a particularly striking finding: some participants met the diagnostic criteria for fibromyalgia during the luteal phase — the low-AEA phase — but not during the follicular phase, when AEA was higher.

This is not a peripheral observation. It suggests that the boundary between fibromyalgia and normal pain sensitivity may, for some individuals, be a matter of endocannabinoid tone — and that tone fluctuates with hormonal cycles. It may help explain the significantly higher prevalence of fibromyalgia in women. It also opens a question about whether hormonal fluctuations more broadly interact with endocannabinoid function in ways that contribute to chronic pain vulnerability across multiple conditions.

The Sleep Dimension

The review addresses the endocannabinoid system's role in sleep regulation — directly relevant to fibromyalgia because sleep disturbance is one of its most disabling features.

The pineal gland produces both melatonin and 2-AG in a circadian rhythm, partially regulated through CB2 receptor activation in the suprachiasmatic nucleus — the brain's master clock. Anandamide has also been shown to play a role in sleep onset. In a person with endocannabinoid deficiency, both the sleep regulatory function and the pain modulatory function would be impaired simultaneously.

The Cycle That Sustains the Condition

The characteristic pattern of fibromyalgia — pain that worsens with poor sleep, and sleep that is disrupted by pain — may not be two separate problems feeding each other. It may be one problem: a dysregulated endocannabinoid system failing at both pain regulation and sleep regulation at the same time, from the same underlying deficiency.

What Cannabis-Based Therapies Have Shown

The review surveys the clinical evidence for cannabis-based treatments in fibromyalgia, covering studies from 2011 to 2024. The picture is promising but not yet definitive.

Clinical Evidence — Key Study Findings

  • 2019 study: 50% reduction in pain intensity in 81% of fibromyalgia patients after six months of medical cannabis treatment
  • Israeli survey: 94% reported pain relief, 93% improved sleep, 87% reduced depressive symptoms, 62% reduced anxiety
  • 2024 study: cannabis combined with oxycodone reduced opioid consumption by 35% without affecting cannabis use frequency
  • 2024 low-dose medical cannabis study: substantial reduction in pain intensity and improvements in physical and mental state in the majority of participants
  • Nabilone (synthetic cannabinoid): significant reductions in pain, anxiety, and overall fibromyalgia impact in randomised controlled trials
  • Systematic review of 17 studies (2021): cannabis-based medicines may be effective for pain relief and sleep improvement — moderate quality evidence

The anti-inflammatory properties of CBD combined with the analgesic and muscle-relaxant properties of THC appear to produce a synergistic effect across fibromyalgia's multiple symptom domains. This is biologically coherent — the condition involves dysregulation across pain, mood, sleep, and inflammation, and a therapy that modulates the endocannabinoid system broadly would be expected to address multiple symptoms simultaneously rather than one in isolation.

The honest limitation is that most of this evidence comes from observational studies, surveys, and small trials. Randomised controlled trials with large sample sizes and long follow-up periods are largely absent. The evidence is promising and biologically well-motivated, but it is not yet at the standard required to establish definitive clinical guidelines. Patients should consult healthcare professionals before considering cannabis as a treatment, as individual responses can vary significantly.

What This Means for the Cannabis Community

The fibromyalgia research adds a critical dimension to the understanding of cannabis that this series has been building week by week.

We established that the endocannabinoid system is the body's own regulatory network — producing anandamide and 2-AG to manage pain, mood, sleep, anxiety, and inflammation. We established that exercise activates this system. This week's paper adds: when this system chronically underperforms, the result is not just a mildly worse baseline mood. The result can be a debilitating condition — widespread pain, exhaustion, cognitive impairment, and disrupted sleep — affecting millions of people who often spend years being told nothing is physically wrong with them.

Cannabis, in this context, is not a recreational novelty or a pharmaceutical shortcut. It is a plant-derived intervention targeting a specific physiological system that, in a significant proportion of the population, is not functioning adequately. The CB1 and CB2 receptors that THC and CBD interact with are the same receptors that are failing to do their job in fibromyalgia patients. The anandamide that cannabis mimics is the same molecule that fluctuates with the menstrual cycle and drops to a level that temporarily meets the diagnostic threshold for fibromyalgia.

"For many people in genuine physiological distress, cannabis may not be making them high. It may be making them feel normal — because it is restoring a function the body is struggling to maintain on its own."

This is what understanding the endocannabinoid system means in practice. Not just a more sophisticated explanation for why cannabis makes some people feel good. A clearer picture of why, for many people in genuine physiological distress, it may be making them feel normal — because it is restoring a function the body is struggling to maintain on its own.

The Endocannabinoid System Series — The Grower's Connect

Source Study: García-Domínguez M (2025) Role of the Endocannabinoid System in Fibromyalgia. Curr. Issues Mol. Biol. 47, 230. doi:10.3390/cimb47040230 — Program of Immunology and Immunotherapy, CIMA-Universidad de Navarra, Pamplona, Spain. Published March 27, 2025.
The Certified — The Grower's Connect  ·  thecertified.co.za
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What’s Actually Inside Your Cannabis Flower

cannabis flower
What's Actually Inside Your Cannabis Flower — And Why Understanding It Could Change How You Grow | The Certified
The Grower's Connect
The Series

Week 4 of The Certified's plant science series. Previously: sucrose stem infusion and 30%+ yield increases, cannabis and the brain, and growing a plant from a single naked cell. This week: what the flower actually is.

Plant Science · Florogenesis & Flower Architecture

What's Actually Inside Your Cannabis Flower — And Why Understanding It Could Change How You Grow

Israeli researchers put cannabis flowers under a scanning electron microscope and mapped exactly how they form, branch, and develop. What they found challenges some of the most widely held assumptions in cultivation — including whether your plant is ever truly vegetative.

The Grower's Connect  ·  2025  ·  10 min read
7 Orders of branching in one inflorescence
2 Flowers at every single node
Day-neutral Flower initiation is not photoperiod-triggered
Listen to this article What's Actually Inside Your Cannabis Flower

Four weeks into this series and the direction has been consistent. We looked at sucrose pushing through a stem to drive yield. We looked at brain scans showing what decades of heavy use does to working memory. We looked at scientists stripping cells naked to unlock the genetics of the future. This week we slow down and look at something that every grower interacts with every single day — the flower itself.

Not the bud as a product. The flower as a biological structure. What it actually is. How it actually forms. And why understanding that might quietly change how you think about your grow.

A 2019 study published in Frontiers in Plant Science by researchers at the Volcani Centre in Israel used scanning electron microscopy and stereomicroscope imaging to map cannabis flower development in detail across three cultivars. What they found is genuinely illuminating — and in some cases, directly challenges assumptions that are deeply embedded in everyday cultivation practice.

Your Plant Is Never Truly Vegetative

Let's start with the finding that will bother some growers most: the idea of a clean vegetative phase — where your plant is just building structure and hasn't started thinking about flowers — is probably not accurate.

The researchers found that under long photoperiod conditions, the ones growers call vegetative, cannabis plants were already producing solitary flowers in the axils of every leaf node. Not just flower primordia visible only under a microscope. Actual flowers. Two of them, sitting in the base of every leaf petiole, one on each side, each subtended by a bract.

In two of the three cultivars studied, these solitary flowers reached full anthesis — complete maturity — under 18/6 light. The plant had not been flipped. It had not been told to flower. It flowered anyway.

What this means scientifically is that cannabis flower initiation appears to be age-dependent and driven by internal signals, not triggered by photoperiod. The plant doesn't wait for the light to change. It begins its reproductive programme on its own schedule, governed by developmental age and internal hormonal cues, not the timer on your ballast.

"When you flip to 12/12, you are not telling the plant to start flowering. You are telling it to dramatically change the architecture of its branching system — around a process it has already begun."

The implication is worth sitting with. When you flip to 12/12, you are not telling the plant to start flowering. You are telling it to dramatically change the architecture of its branching system — to compress and intensify the inflorescence structure it has already begun building. That is a fundamentally different mental model of what the flip does.

The Phytomer — The Repeating Unit You're Working With

To understand what the researchers found, you need one concept: the phytomer. It is the basic repeating building block of the cannabis plant, and every node on your plant is one.

Each phytomer consists of four elements — an internode (the section of stem between nodes), a large fan leaf, two bracts, and two solitary flowers sitting in the base of the leaf petiole. This structure repeats up the entire plant, from the lowest node to the highest. The same unit. Over and over. And critically, the same structure is present whether the plant is under long or short photoperiod.

The Four Elements of Every Phytomer

  • The internode — section of stem between nodes, elongated under long photoperiod, compressed under short
  • The fan leaf — large photosynthetic compound leaf, reducing in size and lobe number as flowering progresses
  • Two bracts — modified leaf structures at the leaf petiole base, subtending the flowers on each side
  • Two solitary flowers — one in the axil of each bract, present at every node under both long and short photoperiod

What changes when you flip to 12/12 is not the phytomer itself. What changes is the scale and compression of the phytomers. Under long photoperiod they are large and spread out, with full-sized fan leaves and extended internodes. Under short photoperiod they miniaturise and compress, leaves reduce dramatically, internodes shorten, and the entire structure densifies into what we recognise as an inflorescence.

When you look at a cola, you are not looking at one thing. You are looking at a compressed stack of phytomers, each containing two individual flowers, each developing on its own timeline, surrounded by its own bract, with its own trichome development happening at its own rate.

What a Cannabis Flower Actually Is

Here is where the microscope work gets interesting for anyone who has ever looked closely at a developing bud and wondered what exactly they were looking at.

Each individual female flower is a remarkably minimal structure. Under the scanning electron microscope, the researchers mapped its development in sequential stages. The flower consists of a carpel — the ovule-bearing structure — enclosed within a perigonal bract: a specialised leaf-like structure that wraps around and envelops the ovary. This perigonal bract is different from the larger subtending bract that sits at the leaf base. It is a second, inner bract that directly surrounds the flower itself.

During early flower development a perianth — an early-stage outer floral envelope — is also present. The researchers documented that it degenerates as the flower matures, losing its structure and becoming barely visible as a thin membrane. By the time the flower approaches maturity, what you are looking at is essentially just the carpel, wrapped in the perigonal bract, with two stigmas extending from the top.

The Detail That Matters Most

Glandular trichomes begin developing on the perigonal bract before the stigmas have fully elongated. The structures producing every cannabinoid and terpene you are cultivating for form and begin their production cycle early in flower development — while the flower is still forming around them. Trichomes are not a late-stage feature.

Those two stigmas — the paired white hairs that growers use as their primary visual indicator of flower development — elongate unevenly, extending from the perigonal bract as the flower matures. Papilla cells develop on the stigma surface, covering it from tip to base. But by this point, trichome development is already underway.

The Inflorescence — Why Dense Branching Is the Point

Under short photoperiod, cannabis develops what the researchers formally classify as a highly branched compound raceme. Understanding this classification explains the structural logic behind what you are trying to achieve with training, pruning, and canopy management.

A raceme is an inflorescence where the main axis continues to grow and produce lateral flowering structures along its length, rather than terminating. Compound means those lateral structures themselves branch and produce further inflorescences of higher order. In cannabis, the researchers documented up to seven visible orders of branching within a single inflorescence — seven levels of nested branchlets, each carrying its own phytomers, each carrying its own pairs of flowers.

The density of your inflorescence — the compactness of your bud — is directly related to how many of these branching orders develop and how much they compress. The more branching orders that develop, the more flowers per unit of stem length, the more bracts per unit of volume, and therefore the more trichome-bearing surface area per gram of inflorescence.

This is the structural basis for trichome density in high-quality cannabis. It is not simply genetics, though genetics sets the ceiling. It is the plant's branching programme executing under the right conditions, compressing as many bract surfaces as possible into as small a space as possible.

Three Cultivars, Three Completely Different Endings

One of the most illuminating findings in the study is what happened at the very tip of the inflorescence in each of the three cultivars — because each one behaved completely differently at the same anatomical location.

Cultivar NB140

High THC · Indica dominant

The apical meristem eventually terminated by differentiating a normal, fully formed female terminal flower — about 8 to 10 days after the first stigmas appeared. The standard expected endpoint.

Cultivar NB150

High THC · Sativa-Indica mixed

The apical meristem terminated by producing a hermaphrodite terminal flower — with both pistils and anthers present simultaneously. Visible under microscope. Likely triggered by stress or ethylene and gibberellin fluctuations.

Cultivar NB130

~7% THC / 7% CBD · Sativa dominant

The inflorescence meristem simply never terminated. Seven months after the flip to short photoperiod, it was still producing new phytomers. An open, indeterminate structure with no programmed endpoint.

All three of these endpoints are governed by genetic programming in the meristem — by the molecular identity of that growing tip and its sensitivity to the hormonal signals that eventually tell it to stop. Different genetics, different outcomes at the same location in the plant. The same photoperiod, the same environment, three completely different developmental conclusions.

The Questions This Should Make You Ask

The value of this kind of research for growers is not in the technical detail itself. It is in the questions it generates. Here are the ones worth sitting with.

Questions from the Research

  1. If your plant is already producing flowers under vegetative conditions, what does extending your vegetative period beyond a certain developmental age actually accomplish? At what point are you simply accumulating more phytomers rather than building a fundamentally different plant?
  2. If trichome development begins before stigma elongation is complete, what does that mean for your interpretation of maturity indicators? Is the pistil colour change you use as a harvest signal actually lagging behind trichome development in a predictable way?
  3. If the density of your inflorescence is determined by how many branching orders develop, what does your environmental management during the first two weeks of flower do to that branching programme? The stretch is not just about height — it is about the architectural decisions the plant is making.
  4. If different cultivars terminate their apical meristems through completely different mechanisms, is the concept of a universal harvest window based on weeks of flower actually meaningful across different genetics? Or is each cultivar following its own internal clock to a structurally different endpoint?
  5. If the phytomer is the same repeating unit at every node, what does defoliation at different stages actually remove in terms of that repeating architecture — and what is the downstream effect on the phytomers above?

These are not rhetorical questions. They are the kinds of questions that, once asked, tend to change how you observe your plants day to day. You start looking for the answers in the plant, not just in a feeding chart.

What This Connects to in Our Previous Work

There is a thread running through this entire series worth naming directly.

In week one, we saw that the cannabis plant's response to sucrose infusion was extraordinarily precise — 0.5 bar worked, 2 bar damaged. The mechanism was at the cellular and molecular level, but the outcome was visible in flower mass and cannabinoid yield. In week two, we saw that what cannabis does to the brain is specific to particular regions — not a general effect, but a targeted one in areas with high CB1 receptor density. In week three, we saw that protoplast viability at isolation determined everything downstream. The starting conditions set the ceiling.

"The plant is not a vague system responding to vague inputs. It is a precise biological machine executing a specific developmental programme, responding to specific signals, at specific times, in specific structures."

The common thread is precision. The more clearly you can see the plant's developmental programme — the architecture of the phytomer, the timing of trichome development relative to flower development, the branching programme that builds your inflorescence — the more accurately you can work with it rather than against it.

That is the argument for growers engaging with this kind of science. Not because you need to run scanning electron microscopes in your facility. But because the mental model you carry of what is happening inside your plant shapes every decision you make about light, environment, timing, and intervention. The more accurate that model, the better those decisions tend to be.

The Grower's Connect — Plant Science Series

Source Study: Spitzer-Rimon B, Duchin S, Bernstein N and Kamenetsky R (2019) Architecture and Florogenesis in Female Cannabis sativa Plants. Front. Plant Sci. 10:350. doi: 10.3389/fpls.2019.00350 — Institute of Plant Sciences, Agricultural Research Organization, The Volcani Center, Rishon LeZion, Israel. Published April 2, 2019.
The Certified — The Grower's Connect  ·  thecertified.co.za
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The Green Giant Visualising South Africa’s Cannabis Appetite

south african cannabis

Every day, countless South Africans wake up, grind a bud, and spark a flame. It’s a ritual woven into the fabric of our nation, spanning cultures, classes, and corners of the country. But have you ever stopped to consider the sheer scale of it?

Let’s run a thought experiment. It’s 2026, and we’re standing on the shoulders of data from nearly two decades ago. Back in 2008, estimates put the number of cannabis users in South Africa at around 2.4 million. The world has changed since then. Decriminalisation happened. The culture exploded. Stigma is fading. It’s safe to assume that number has grown significantly, but for the sake of this exercise, let’s stick to a conservative estimate of 3 million users today.

Now, imagine each of those people consumes just one gram a day. That’s a modest average; some smoke far less, others far more. But do the math:

3 million people x 1 gram = 3 million grams of cannabis consumed every single day.

What Does 3 Million Grams Look Like?

Three million grams is 3,000 kilograms, or 3 tonnes.
That number is hard to visualise. So, let’s put it into perspective.

  • An African Elephant: A fully grown male African elephant weighs about 6 tonnes. So, every two days, South Africa smokes an entire elephant’s weight in weed.
  • A Toyota Hilux: A double-cab bakkie weighs around 2 tonnes. We are smoking one-and-a-half Hiluxes every day.
  • A Shipping Container: A standard 20-foot shipping container can hold about 20-25 tonnes of cargo. It would take South Africa just over a week to smoke through a container filled to the brim with cannabis.

This is the daily appetite of a nation. It’s a staggering volume of plant matter being cultivated, harvested, cured, transported, and consumed. And remember, this is likely a low-ball estimate.

south african cannabis

The Mystery of the Supply Chain

How did we get here? How does a country produce and distribute 3 tonnes of a flower every day, largely within a legal grey area?

It speaks to the incredible resilience and ingenuity of the cannabis community. Long before the 2018 Constitutional Court ruling, before the “Cannabis for Private Purposes Act,” this network existed. It thrived in the shadows, built on handshake deals and hidden crop fields in the Transkei, the mountains of KZN, and indoor setups in suburban garages.

It is insane to think that despite this massive volume, there are still pockets of our country where access is difficult. There are still people taking immense risks, driving bakkies laden with bags down back roads at midnight, to get this plant to where it needs to be. The sheer logistics of moving 3 tonnes of product daily, without a formal, regulated distribution network, is a marvel of informal economics.

The Bottom of the Bottle?

Here’s the kicker: compared to alcohol, we are still the underdogs. South Africans consume millions of litres of beer and spirits annually. The alcohol industry is a titan, with trucks, warehouses, and tax revenues to match. Cannabis users, despite our numbers, are often still treated as the fringe.

Yet, when you quantify our usage, the reality becomes undeniable. We are not a fringe group. We are a massive, thriving market. We are a demographic that consumes tonnes of product daily.

Room to Grow

It has only been 8 years since decriminalisation began to shift the landscape. In that short time, we have carved out spaces for ourselves. We have cannabis clubs, grow shops, and online communities. We have events like the Amber Cup, celebrating the pinnacle of extraction.

But as we look at the sheer volume, those 3 tonnes a day, it becomes clear how much room there is for improvement. We need better standards. We need quality control that matches the volume. We need a system where access isn’t a gamble but a guarantee.

Currently, the market is a mixed bag. You can find top-shelf indoor hydro in Sandton and bush weed in a matchbox in the rural areas. There is something for everyone, which is beautiful in its own way, but imagine if we could elevate the baseline? Imagine if every one of those 3 million grams was clean, safe, and grown with care.

south african cannabis

The Great Cloud

Let’s end our thought experiment with a final image.
If all 3 million of us decided to spark up at the exact same moment, say, 4:20 PM on a Friday, what would happen?

3 million joints are lighting up simultaneously. 3 million lungs exhaling a cloud of blue-grey smoke.

It wouldn’t just be a haze; it would be a weather system. A massive, fragrant cloud drifting over Johannesburg, or blanketing Table Mountain. It would be a visual testament to our numbers, a signal that we are here, we are many, and we are united by this plant.

The market is huge. The potential is limitless. And we are just getting started.

south african cannabis

Happy Smoking, South Africa. That’s a lot of weed

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Red Tape on Green Gold: The New Draft Cannabis Regulations & The Fight for Logic

cannabis regulations

This week, the South African Parliament decided to kick the hornet’s nest. Just as we were settling into the rhythm of the 2026 grow season, the Department of Justice and Constitutional Development (DoJCD) dropped the Draft Regulations for the Cannabis for Private Purposes Act and opened them for public comment.

Naturally, the community is buzzing and not in a good way. The “cot has been turned upside down,” as it were. While I had planned to discuss cultivation techniques today, it is my duty as your weekly commentator to pivot. We need to talk about paperwork, policy, and why the line in the sand is being drawn in some very strange places.

The New Numbers: 5 Plants, 750 Grams

We know that the Cannabis for Private Purposes Act (Act No. 7 of 2024) was signed into law, solidifying our constitutional right to cultivate, possess, and consume in private. However, the regulations, the fine print that tells the police what to look for, were missing. Until now.

Here is what the Government Gazette (No. 50744, published June 2024, open for comment Feb 2026) is proposing:

  • Cultivation Limit: A maximum of 5 plants per adult in a private place. This applies regardless of the size, shape, or strain of the plant.
  • Possession Limit: Maximum of 750 grams of cannabis per adult. Crucially, the draft implies this limit applies to both private spaces (your home) and public spaces (what you carry on you).
  • Transport: You may transport up to 750g, but it must be concealed from public view (in the boot or a storage container).
  • Vehicles: No smoking in vehicles on public roads. Passengers must conceal their stash. Drivers are essentially obligated to police their passengers.

The Big Question: Where is the Science?

The immediate reaction from the streets is anger. But we need to move past anger into constructive interrogation.

The most glaring issue with these regulations is the arbitrary nature of the limits. As a community, we need to ask the Minister of Justice a simple question, echoed by legal experts and activists alike: What is the scientifically justified rationale behind these numbers?

Why is 5 plants the magic number? If I grow 6 plants to ensure I have a steady supply of medicine for the year, why does that sixth plant make me a criminal?
Why 750 grams? To the uninitiated, or the media outlets running headlines like “Enough for 2,000 joints,” this sounds like a mountain of weed. But any grower knows that wet weight vs. dry weight matters. A massive outdoor tree can yield over a kilogram. Does harvesting one successful plant instantly turn a law-abiding citizen into a criminal because their harvest weighed 800g?

cannabis regulations

The State must provide a science-based rationale to show that these limitations are necessary and reasonable. Currently, it feels like they pulled numbers out of a hat. We don’t limit how many bottles of wine a connoisseur can keep in their cellar. Why are we limiting the harvest of a gardener?

Apathy is our Enemy

Here is the hard truth: We are letting ourselves down.

I have noticed a trend where the community is quick to complain in WhatsApp groups or Facebook comments, but slow to participate in the actual legislative process. Marching in the streets makes for good photos, but policy is written in boardrooms based on written submissions.

The deadline for comments is 5 March 2026.

There are templates available (like the one circulating from the Cannabis Culture of South Africa) that help you ask these hard questions. They challenge the constitutionality of the police inspecting your private space to count your plants. They challenge the violation of privacy. They challenge the limitation of your right to access health and food (yes, hemp seeds are food).

If we do not flood the Department’s inbox with intelligent, respectful, and firm objections, we are essentially consenting to these arbitrary rules.

The Media Spin

We also have to contend with the media narrative. The headlines focus on the “generosity” of the 750g limit, framing it as a boon for stoners. They fail to understand the agricultural reality.

Furthermore, the regulations around driving are severe. The draft proposes a zero-tolerance approach or extremely low limits for THC in the blood for drivers (comparable to 0.02g alcohol). While we all agree that impaired driving is wrong, we also know that THC stays in the blood long after impairment fades. Are we setting up a system where a daily medicinal user can never legally drive a car, even when sober?

cannabis regulations

The Reality: The Culture Precedes the Law

Ultimately, we must remember one thing: The Cannabis Community existed before the legislation.

We were growing, sharing, and healing long before the Constitutional Court judgment in 2018. We survived total prohibition. We will survive bad regulations.

However, we shouldn’t have to just “survive.” We should be allowed to thrive. We shouldn’t have to worry that a successful harvest will put us in handcuffs because we exceeded an arbitrary gram count.

The law is trying to fit a square peg (a complex, diverse culture and agricultural crop) into a round hole (a strict, policing-heavy framework). It is up to us to pick up the sandpaper and smooth out the edges.

Do not just read this and scroll on. Find the template. Write to the Department. Ask them why 6 plants are a crime. Ask them to show you the science.

The deadline is 5 March. Let’s make sure they hear us.

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What are Fertiliser Groups: Understanding nutrients

fertilisers
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In South Africa’s flourishing cannabis landscape, where the energy of grow season is palpable, and cultivators strive for excellence – from nurturing monster outdoor crops to dialling in precision greenhouse environments – every decision counts. We’ve celebrated the plant’s inherent value, delving into the nutritional power of hemp seeds, marvelling at discoveries like the flavoalkaloids in cannabis leaves by Stellenbosch University, and embracing the cosmic rhythms that guide traditional planting. Now, it’s time to address a foundational element critical to every grower’s success: fertilisation.

Choosing the right nutrients for your cannabis plants can feel like navigating a complex maze. The market is saturated with products, each promising optimal growth and bountiful harvests. To make informed decisions, it’s essential to understand the regulatory framework that governs these products in South Africa – specifically, the Fertilisers, Farm Feeds, Agricultural Remedies and Stock Remedies Act, 1947 (Act No. 36 of 1947), overseen by the Department of Agriculture, Forestry and Fisheries (DAFF). This framework categorises fertilisers into distinct groups, guiding their composition, claims, and application.

This week, we’ll demystify these fertiliser groups, with a particular focus on Group 3 fertilisers. Many growers might not fully grasp that certain organic-derived products, including powerful hormone extracts, fall into this fascinating category. Understanding these classifications is key to selecting the right products that support healthy, high-quality cannabis, in harmony with both scientific principles and regulatory compliance.

The Foundation: South Africa’s Fertiliser Groupings

Under Act 36 of 1947, fertilisers in South Africa are broadly categorised into three main groups based on their primary function and nutrient composition. This classification helps both regulators and growers understand a product’s intended purpose and the claims it can legally make. A “fertiliser,” as defined by the Act, is any substance or organism intended to improve or maintain plant growth, yield, or the physical, chemical, or biological conditions of the soil.

Group 1 and Group 2 Fertilisers: The Core Nutrient Providers

These two groups largely encompass what most growers recognise as conventional fertilisers, focusing on the direct supply of major plant nutrients.

  • Group 1 Fertilisers are those containing a total of 100 g/kg or more of Nitrogen (N), Phosphorus (P), or Potassium (K), or any combination thereof. These are your high-impact, chemically compounded or enriched organic fertilizers designed to provide substantial amounts of the essential macro-elements that cannabis plants require in large quantities for vigorous growth, flowering, and fruit development. Most of the time, these will be the synthetic nutrients you are used to seeing on the market. But note that there are group 1 blends that are organic blends. These products are more available in huge blends from major Agri farm suppliers. 
  • Group 2 Fertilisers include those with a total of less than 100 g/kg of N, P, or K, or those that provide other recognised plant nutrients in acceptable amounts. These often include products focusing on intermediate macro-elements like Calcium, Magnesium, and Sulphur, or specific trace elements. While still nutrient providers, their concentration of NPK is lower than Group 1. Products like “Bonemeal” or “Iron Chelate”, which focus on specific nutrient delivery or soil amendments, would typically be found here if their NPK levels are below the Group 1 threshold. Thus, we normally associate group two with a more organic fertigation. But it is not to say that all group 2 fertilisers are organic in composition. 

Both Group 1 and Group 2 fertilisers are vital for directly feeding your cannabis plants, ensuring they receive the NPK ratios necessary for healthy vegetative growth, robust root systems, and prolific flower development, as we discussed when exploring cannabis’s nutritional needs and terroir.

fertiliser

Group 3 Fertilisers: The Holistic Enhancers and Stimulants

This is where the distinction becomes particularly interesting for cannabis cultivators aiming for a truly holistic approach to plant health and maximising specific traits – from stress resilience to enhanced resin production. Group 3 fertilisers are defined as any natural or synthetic substance or organism that improves the growth or yield of plants, or the physical, chemical, or biological conditions of the soil, and does not qualify for registration as a Group 1 or 2 fertiliser based on NPK content. 

Unlike Groups 1 and 2, which primarily supply nutrients, Group 3 products often enhance the plant’s ability to utilise nutrients, improve its environment, or directly stimulate physiological processes. This broad definition encompasses a diverse range of innovative products crucial for modern cannabis cultivation.

Within Group 3, we find several key categories:

  • Biofertilisers: These are living organisms that enhance plant growth by improving nutrient availability or uptake. This includes beneficial fungi (like mycorrhizae) and bacteria that colonise the root zone, improving nutrient cycling and pathogen resistance. For cannabis, this means a healthier root environment, leading to stronger, more resilient plants, a concept deeply aligned with nurturing terroir. Our FPJ and FFJ blogs would give a great guide to homemade biofertilisers. 
  • Soil Enhancers (Soil Conditioners): These products improve the physical properties of the soil, such as water retention, cation exchange capacity (CEC), and hydraulic conductivity. They don’t directly feed the plant, but create a better medium for roots to thrive. Examples include humic and fulvic acids, which improve nutrient absorption and soil structure, or peat and palm peat for enhanced water holding capacity and aeration – crucial for cannabis root development, as we discussed in the context of the Spring Equinox. Also consider our work on IMO, Korean natural farming too. Some awesome guides for homemade quality.
  • Seaweed Containing Products: Extracts from seaweed, like KELPAK or NATRAGRO from Starke Ayres, are rich in natural growth hormones and trace elements. They are classified as Group 3 because their primary function is plant stimulation and stress alleviation, rather than major NPK provision. They assist plants through stresses like heat, drought, and disease, and improve NPK uptake. 
  • Plant Growth Regulators (PGRs): This is a critical category, and one that often causes confusion. PGRs include both natural and synthetic substances like Auxins, Brassinosteroids, Cytokinins, and Gibberellic acid. These compounds directly influence plant physiological processes such as root development, cell elongation, branching, and flowering. A common misconception is that if a product is “organic” it can’t be a PGR or a Group 3 fertiliser. However, many hormone extracts are organically derived but still function as PGRs, falling squarely into Group 3 due to their role in regulating growth rather than primarily supplying bulk NPK. Our understanding of cannabis architecture and florogenesis, highlighted by studies like those from Spitzer-Rimon et al., underscores the intricate hormonal control over plant development, making PGRs potent tools for cultivators.
  • Fertiliser Coatings and Inhibitors: These products improve the efficacy of other fertilisers by controlling nutrient release or increasing their residency in the soil. Nitrogen inhibitors, for example, prevent nitrogen loss, making fertilisers more efficient.
  • Products of Plant and Animal Origin (excluding bone and blood meal): This category includes various natural materials that improve soil conditions or plant growth, provided they meet specific safety and efficacy standards. Any moringa-based product, for example, Phytostim.
  • Novel Products: This catch-all category allows for the registration of new, innovative substances that improve plant or soil conditions, ensuring the regulatory framework can adapt to scientific advancements.
fertiliser

Why Group 3 Fertilisers are Essential for Cannabis Growers

For South African cannabis cultivators, embracing Group 3 fertilisers isn’t just about compliance; it’s a strategic move to optimise plant health, yield, and the expression of unique cannabis terroir.

  • Holistic Plant Health: Group 3 products work in synergy with conventional fertilisers. While NPK fertilisers provide the building blocks, Group 3 enhancers improve the very environment and mechanisms through which these blocks are absorbed and utilised. This leads to overall healthier, more vigorous plants.
  • Enhanced Terroir Expression: As we discussed, terroir is influenced by climate, soil, and genetics. Soil enhancers, biofertilisers, and seaweed extracts can optimise the soil’s biological activity and nutrient availability, allowing your cannabis plants to fully express their unique genetic potential, including those intricate terpene and cannabinoid profiles that make our local strains so distinctive.
  • Stress Resilience: PGRs and seaweed-based products, like Kelpak, are particularly effective in helping plants cope with environmental stressors such as drought, heat, and disease – common challenges in many South African climates. Stronger, healthier plants are naturally more resistant to mould and pests, a wish for our outdoor growers.
  • Optimised Growth Cycles: PGRs can be invaluable for fine-tuning plant development. For instance, specific hormones can be used to promote robust root growth in seedlings or to encourage denser branching in vegetative plants, influencing the plant architecture we saw discussed in studies on cannabis florogenesis. This is especially relevant for our greenhouse growers looking for smooth tunnel flower and a dialled-in setup.
  • Root Development and Nutrient Uptake: Humic and fulvic acids significantly improve nutrient uptake efficiency and foster robust root systems. As we learned from the Spring Equinox discussion, strong root development is fundamental for a healthy plant.
fertiliser

Navigating Your Choices: A Responsible Grower’s Guide

Selecting the right fertilisers requires an informed approach.

  1. Understand Your Plant’s Needs: Start with the basics. Cannabis has specific NPK requirements that change during its vegetative and flowering phases. We have written extensively on nutrients. How to ensure the correct NPK for your plants. So check those out if you are stuck. 
  2. Read Labels Carefully: All registered fertilisers must detail their composition, application rates, and usage instructions. Look for the NPK sequence (e.g., 2:3:2), percentages of macro-elements, and lists of micro-elements. Pay attention to application rates, whether for foliar spray or soil drench, and apply them diligently to avoid over-application or under-application. If there are none of these things on the label, then you need to ask more questions. Use with caution.
  3. Prioritise Efficacy and Safety: For Group 3 fertilisers, DAFF requires rigorous efficacy studies (scientific reports based on statistical analyses, often conducted in field, greenhouse, or laboratory settings) and toxicological studies to ensure the product has no harmful effects on plants, humans, animals, or the environment. This includes testing for phytotoxicity (negative effects on plant development, colour, yield, etc.). Always choose products from reputable suppliers who can provide this documentation.

Cultivating Excellence in South Africa

The journey of growing cannabis in South Africa is a dynamic blend of traditional wisdom and cutting-edge science. By understanding the nuances of Group 3 fertilizers – from biofertilizers and soil enhancers to plant growth regulators derived from natural sources – growers can make informed choices that promote not just growth, but true plant vitality, stress resistance, and the full expression of their unique cannabis terroir.

fertiliser

As you prepare your setups and nurture your plants this season, let this knowledge empower you. Choose your fertilisers wisely, respecting both the plant’s needs and the regulatory framework that ensures quality and safety. May your cultivation efforts reach new heights, yielding healthy, high-quality cannabis products that truly reflect the spirit of South African excellence.

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The Rolling Ritual: A Guide to Crafting the Perfect Joint

The perfect joint
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Last week, we delved into the potent world of the bong, demystifying its technique and showcasing the instant intensity it offers. This week, we pivot to another beloved pillar of cannabis culture, one steeped in meditative ritual and social connection: the joint.

For many, rolling a joint is far more than simply preparing cannabis for consumption; it’s an art form, a mindful act of creation, and a cherished part of the cannabis experience itself. In South Africa, where community and tradition run deep, the joint holds a special place, often representing camaraderie and shared enjoyment. While some might shy away from the perceived complexity of rolling, this guide aims to demystify the process, turning what might seem daunting into a deeply satisfying craft.

The Canvas of Choice: Understanding Rolling Papers

The journey to a well-rolled joint begins with the rolling paper itself, and the market offers an astonishing array of choices, each with its own characteristics and fan base. While less popular, some might explore flavoured papers for an added twist to their smoke. However, the true champions of the market are universally recognised brands like RAW papers and OCB papers, which dominate most cannabis circles.

Within these popular brands, the variations are plentiful. RAW, for instance, offers both bleached and unbleached options, catering to preferences for natural purity. You can find papers with or without integrated filter tips, pre-rolled cones for convenience, and various sizes from standard 1 ¼ size to larger king size, and even expansive 3-metre rolls that allow you to customise your joint length. Beyond these staples, innovative brands like One Love stand out, offering not just quality papers and perfectly designed filter tips, but also ingenious packaging that doubles as a scoop, a rolling tray, and even a grinder, showcasing a thoughtful approach to the user experience.

The perfect joint

There’s a fascinating truth in the rolling community: the more proficient you become, the thinner the paper you tend to prefer. Seasoned rollers often gravitate towards ultra-thin options, sometimes even rice paper, appreciating its minimal impact on the flavour of the flower. Ultimately, however, the real skill lies not in the paper itself, but in how one’s fingers feel good with the paper, adapting to its texture and pliability. This tactile connection is paramount, as the toughest part of rolling a joint often boils down to the delicate, upward motion that gently closes the paper and seals the joint.

Preparation is Key: Grinding Your Flower

Before the rolling can begin, proper preparation of your cannabis flower is essential. Unlike the bong, where a consistent, fine grind is often crucial for optimal airflow and burn, when it comes to joints, scissors are a perfectly acceptable tool, and the ultimate fineness of the grind or chop is largely a matter of the individual roller’s preference.

Some rollers prefer a slightly coarser grind for a slower, more even burn, while others favour a finer consistency for a tighter roll. With practice, you develop an intuitive sense for the right texture and quantity, ensuring you don’t end up cutting too much or too little material for your desired joint size. This personal preference allows for a level of customisation that adds to the meditative aspect of the joint-rolling ritual.

The Heart of the Craft: Your Step-by-Step Rolling Method

This method assumes you have a pack of papers that includes filter tips, making the process seamless from start to finish.

  1. Grind Your Flower: Begin by grinding your cannabis flower to your preferred consistency, ensuring it’s ready for an even distribution in the paper.
  2. Filter Tip Preparation (The Secret to Shape Retention): Take a filter paper from your pack. To create a sturdy, shape-retaining tip, first roll the filter paper in the opposite direction all the way to its perforated part. This initial counter-roll helps to “memory-train” the paper. Then, you can proceed by bending the perforation as usual and rolling the filter paper back normally into its desired tip shape. This clever trick will help keep the filter’s form, preventing it from expanding and loosening within the joint later.
  3. Packing the Flower: Now, hold and cup the paper with your less-dominant hand. Carefully pack the ground flower into the paper, distributing it evenly. Ensure you leave enough space for about half the length of your filter tip at the back of the joint and roughly a full filter-tip size gap in the front (the end you’ll light). As you spread the flower, consider your dominant hand: if you’re right-handed, pack the flower so that the future back of the joint, where the filter will be inserted, is positioned to your right. This orientation facilitates a smoother rolling motion.
  4. Insert the Filter: Once the flower is evenly spread, insert approximately half of the prepared filter tip into the space you left at the back of the joint, allowing the other half to protrude temporarily.
  5. The Crucial Tuck and Roll: This is often considered the toughest part, but with practice, it becomes second nature. Begin by rolling the very edge of the paper upwards, ensuring it’s level with the filter tip. As you roll inwards or upwards in a continuous motion to close the paper, gently pinch the filter and paper together with your dominant hand. This pinching action is vital, as it ensures the filter and paper roll seamlessly together, maintaining a tight, even circumference. Your less-dominant hand then guides the rest of the paper in place, smoothly forming the body of the joint.
  6. Seal the Deal: Once the joint is rolled and neatly tucked in at the back, continue rolling upwards until all of the paper is closed, leaving only the gummed, glue strip exposed. Give that strip a quick lick and firmly seal the deal, securing your perfectly crafted joint.
  7. The Final Pack: Now, for a neat finish, gently push the remaining half of the filter tip fully back into the joint. This action ensures the flower is nicely packed against the back of the filter, creating a firm and consistent draw. Next, hold the joint upright and lightly tap it down on a hard surface to further settle the flower. If there’s any extra flower at the front (the unlit end), you can now scoop it in and pack it down gently for an even, cone-shaped finish. Your joint is now beautifully rolled and ready.

Creating a Cone Shape: For those who prefer a classic cone shape, an alternative approach involves bending the filter paper slightly and starting to roll the filter only halfway. Then, insert the rolling paper into the last 30% of the filter’s length. As you pack the flower and complete the roll, the natural taper will create that desirable cone or “bat” shape.

The Perfect Joint

Joint Etiquette: The Unspoken Rules of Sharing

Just like any communal ritual in South Africa, smoking a joint comes with its own set of unspoken rules and courtesies, ensuring a harmonious experience for everyone involved.

The roller normally sparks the joint, enjoying the first puff as a reward for their craft. However, they also retain the gracious right to pass on the lighting of the torch to anyone else in the circle, an act of deference and camaraderie.

When passing, the tradition dictates that we pass to the left. Yet, if your circle prefers to zigzag the joint across, then so be it – the ultimate wish for any gathering is that everyone stays in rotation, ensuring fair turns and shared enjoyment.

A crucial point of etiquette: we don’t “off the roach” (the last, small part of a joint) without explicitly telling the next person that it is indeed the roach. This prevents any unpleasant surprises or unexpected burns. Furthermore, we always pass the joint lit; if it dies in passing, the lighter should always accompany it. And while “puff puff pass” remains a cherished custom in most circles, today, no one truly minds the extra puff. Just please, remember: the joint is not a microphone; pass it on rather than holding court with it in hand.

Embrace the Craft, Celebrate the Community

Rolling a joint is more than a means to an end; it’s an empowering craft that deepens your connection to the cannabis plant and the community around you. It’s a testament to the appreciation we hold for Cannabis sativa L. – from its profound health benefits and unique terroir to the pure joy it brings.

The Perfect Joint

This week, we encourage you to embrace the ritual of rolling, to perfect your technique, and to share your creations responsibly. May every joint you roll be a source of calm, creativity, and connection. Happy rolling, South Africa!

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The Art of the Hit: A Guide to Smoking a Bong

Smoking a Bong
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Last week, we delved into the fascinating rituals of cannabis consumption, highlighting the distinct preferences for joints, pipes, and bongs. We acknowledged that for many, the bong remains an enigmatic device, often shrouded in a daunting aura due to its perceived intensity and the technical precision it demands. Indeed, a misstep can lead to an unpleasant, throat-scratching experience that might deter newcomers from ever trying it again.

However, the truth is that mastering the bong doesn’t have to be an intimidating exercise. With a little understanding and the right approach, anyone can enjoy the unparalleled intensity, flavour, and immediate effects that a properly smoked bong delivers. This week, we’re demystifying the bong, breaking down the technique into simple, manageable steps, and offering practical advice for South African enthusiasts looking to elevate their cannabis experience.

Choosing Your Companion: Understanding Bong Size

The journey to a perfect bong hit begins with selecting the right apparatus. While dynamite may come in small packages, there’s a nuanced truth to this saying when it comes to bongs, especially for beginners.

Smaller bongs, though seemingly more manageable, often present a steeper learning curve. Their shorter chamber means the smoke travels faster and more directly into the throat, offering less time for cooling and less water filtration. This can result in a harsher, more intense hit that might catch a beginner off guard, leading to discomfort.

Smoking a bong

Conversely, excessively large or very tall bongs also pose challenges. The smoke in these expansive chambers takes too long to travel from the bowl to the lungs. This extended journey causes the smoke to go stale, becoming surprisingly harsh and diminishing the fresh flavour of your cannabis.

For the aspiring bong connoisseur, the sweet spot for a beginner is typically a 23cm glass bong. This size offers an optimal balance: a chamber long enough to allow for adequate water filtration and cooling, but short enough to ensure the smoke remains fresh and potent upon inhalation.

The Water Level: Your First Line of Filtration

Once you have your ideal bong, the next critical step is ensuring the correct water level. The water in your bong acts as a primary filter, cooling the smoke and trapping impurities, contributing to a smoother, cleaner hit.

Begin by filling your bong, ensuring that the water covers all percolators if your bong features them. Percolators are intricate glass structures designed to create more bubbles, thus increasing the smoke’s surface area contact with water for enhanced filtration. After filling, perform a “dry rip” – inhale gently without lighting the flower – to check the water level. During this test, water should never come past the ice-hold section or splash up past the very bottom of the stem where your mouth will make contact. If water splashes up too high, it indicates overfilling, which can lead to uncomfortable “bong water mouth” and impede airflow. Adjust the water level until your dry rip provides a smooth, splash-free draw.

Grinding and Packing: The Foundation of a Good Hit

The quality of your flower preparation directly impacts the efficiency and enjoyment of your bong hit.

Grinding is essential for bongs. You need a decently ground flower – not too fine, as this can cause the material to fall through the bowl or clog the bottom, restricting airflow. Conversely, an overly coarse flower won’t burn evenly. A good grinder will provide a consistent, medium grind. If you’re using scissors, take the time to cut the flower up nicely into small, even pieces.

When it comes to packing the bowl, resist the urge to overpack or compress the flower too tightly. Instead, pack loosely, without forcing flowers into the bowl. This allows for optimal airflow, crucial for an even burn. A common pitfall for beginners is trying to pack a massive bowl to impress others. It’s always best to bite off as much as you can chew; start with smaller, manageable bowls to get used to the technique rather than risking discomfort by acting tough.

Smoking a bong

The Inhale and The Clutch: Mastering the Technique

This is the moment of truth – the execution of the hit itself, which requires coordination and control.

  1. The Steady Draw: With your mouthpiece sealed, use a lighter to ignite the packed flower in the bowl. Simultaneously, begin a steady, controlled inhale. This initial draw should be slow enough to allow the flame to gently burn the flower in the bowl. The goal here is a consistent, even cherry across the top of the flower.
  2. Burning the Bowl Correctly: It is crucial that this initial, small draw burns all the flower in the bowl completely and evenly. This is where many beginners falter; an uneven burn can lead to an acrid taste and wasted material. This “initial small draw” is key to preventing the need for re-lighting or an unpleasant taste.
  3. The Clutch Pull: Once the material is thoroughly burned and the chamber is filling with dense, white smoke, you are ready for the next step. This is when you release the clutch (or carb hole), which is usually a small opening on the side of the bong.
  4. Clearing the Chamber: As you release the clutch, draw harder on your inhale to swiftly achieve two things: (a) pull any remaining ash from the bowl into the water, and (b) pull all the accumulated smoke through the chamber and into your lungs. This rapid clearing of the chamber ensures a fresh, potent hit and prevents stale smoke from lingering.

When done correctly, the result is an intense, flavourful, and remarkably smooth inhalation that delivers an instant, profound experience.

Bong Etiquette: Cultivating a Respectful Experience

Just like any shared ritual in South Africa, smoking a bong comes with its own set of unspoken rules and courtesies, ensuring a pleasant experience for everyone involved.

  • Wipe the Mouthpiece: It’s considered basic hygiene and common courtesy to wipe the mouthpiece before and after each use, especially when sharing. A quick swipe with your hand or a tissue is all it takes.
  • Clean the Bowl: After your hit, clean the bowl by gently tapping out any ash. This prevents burnt residue from accumulating and keeps the next person’s hit clean and fresh.
  • No “Ghost” Smoke: A cardinal rule of bong etiquette is not leaving “ghost” smoke in the bong. If there is any smoke left in the chamber after you hit, do not draw it and hold it in, as it quickly becomes stale and harsh for the next person. Instead, simply blow the ghost into the ether by blowing gently into the bowl area to clear the chamber. This ensures the next person gets a fresh, clean hit.
  • Offer to Pack: If you’re the one passing the bong, it’s polite to offer to pack a fresh bowl for the next person.
smoking a bong

Embrace the Hit: A Rewarding Endeavour

While the bong may seem daunting at first, it’s a deeply rewarding method of cannabis consumption, offering an instant, intense, and flavourful experience that is unparalleled. By understanding the basics of bong size, water levels, grinding, packing, and mastering the inhale and clutch technique, you can unlock a whole new dimension of cannabis enjoyment.

So, for all our South African cannabis enthusiasts looking to try something new, don’t shy away from the bong. Embrace the technique, respect the etiquette, and discover the potent pleasure it offers. Happy hitting!

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Stoners vs. Cannabis Users: Two Paths, One Plant

Stoners
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Over the past months, we’ve spoken about growing, harvesting, trimming, curing, lighting, nutrients — all the ways we cultivate cannabis with intention and care. But cannabis is not only a crop. It is a culture, a community, a shared experience that has shaped friendships, households, music, art, rituals, and identities. Yet within this culture, there are distinctly different archetypes — often grouped together, but meaningfully different in how they relate to the plant.

This week, we’re talking about the stoner and the cannabis user: two expressions of one relationship, shaped by lifestyle, mindset, and personal meaning. And neither is better, purer, or more correct than the other. Both reflect something true about cannabis and the role it plays in our lives.

The Cannabis User: Intentional, Measured, Scheduled

They may only consume on weekends, at specific times, or during special occasions — like the Saturday braai with friends, or a night where they want to unwind and listen to music. For the cannabis user, cannabis fits into life around responsibilities. It can be paused, postponed, or stepped away from entirely — without internal conflict.

If work is busy, if training is intense, if life demands clarity — the user simply says:

“Not this week.”

And there is no mourning in that decision — because the relationship is functional, not defining.

A cannabis user treats cannabis like:

  • A tool

  • A remedy

  • A recreational enhancer

Something they choose to engage with, rather than something that shapes their daily rhythm.

Stoners

The Stoner: A Life Intertwined With the Plant

The stoner, on the other hand, shares a story with cannabis. It is not just something they use — it is something they belong to. The stoner may reduce or stop consumption at times — and many do — But the identity, the cultural belonging, the connection, remains.

A stoner knows the mysticism of the plant:

  • The way it softens the world

  • The way it opens creativity and curiosity

  • The way it turns quiet moments into meaningful ones

  • The way it shifts perspective and brings humour, philosophy, and  presence

The stoner engages with cannabis with emotion and meaning. They read into its symbolism. They speak of it the way one speaks of art. They find themselves in it, again and again. To them, cannabis is a companion rather than a tool.

Why the Difference Matters

These two identities can sometimes misunderstand each other.

The user may look at the stoner and think:

“You smoke too much.”

The stoner may look at the user and think:

“You’re missing the magic.”

But both are simply meeting the plant where they are.

Cannabis is unique among substances in how flexibly it meets human intention.

  • For some, it enhances pleasure

  • For others, connection

  • For others, healing

  • For others, play

Both the stoner and the cannabis user receive the same plant, but cannabis becomes what each person brings to it.

Stoners

What Makes Cannabis Different From Other Substances

If you stop drinking alcohol, nobody thinks you still belong to “wine culture.” If you stop drinking coffee, you’re not still a “coffee person.” But someone who stops consuming cannabis can still feel deeply connected to cannabis culture — and that tells us something profound. Cannabis is not only a substance. It is an experience, a worldview, and a shared cultural language. A medicine that breaks barriers and provides a better quality of life, when respected.

Cannabis as a whole allows for human interaction, community and love. The epicentre of the plant in the community is sharing, something that to this day still exists in many different forms. Today, we don’t just share the joint. We do seeds, plants, trinkets, and so much more. 

And this is why the stoner remains a stoner — even during sober seasons —
 because the plant has become part of how they see and move in the world. And why the cannabis user is not ashamed of coming back into the fold. Cannabis is truly for the people.

stoners

In the End, Both Are Valid

The cannabis user and the stoner are not opposites — they are reflections of two ways of being in relationship with the same plant. One is measured and structured. One is immersive and exploratory. Both are authentic. Both are respected. Both are welcome in this community. Because ultimately, cannabis is not something we define. It is something we share.

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South African Scientists Uncover Rare Compounds in Cannabis Leaves

Rare Compounds in Cannabis

For too long, the conversation around cannabis in South Africa has been narrowly confined, often overshadowed by debates on recreational use or the well-known psychoactive components. Yet, beneath this limited perception lies a world of intricate chemistry, brimming with therapeutic potential that is only just beginning to be unveiled. Right here, on our own soil, groundbreaking research from Stellenbosch University is challenging these outdated narratives, positioning South Africa at the forefront of global cannabis science.

This pioneering study, published in the prestigious Journal of Chromatography A, goes beyond the familiar cannabinoids like THC and CBD. It delves deep into the often-overlooked parts of the cannabis plant – particularly its leaves and inflorescence – to uncover a treasure chest of complex, health-boosting compounds. The findings are nothing short of astonishing, as local scientists have not only extensively characterized previously understudied “phenolics” but have also provided the first-ever evidence of a rare and chemically intriguing class of compounds: flavoalkaloids, in Cannabis sativa L.

This monumental work, led by Magriet Muller and Professor André de Villiers from the Department of Chemistry and Polymer Science at Stellenbosch, utilized state-of-the-art analytical techniques to dissect the chemical makeup of three commercial cannabis strains cultivated in South Africa: ‘Cape Cookie’, ‘CBG’, and ‘Blue Sky’, sourced from Cannsun Medicinals. It’s a testament to the ingenuity and scientific rigour thriving in our nation, offering a glimpse into a future where cannabis is recognized for its full spectrum of medicinal and wellness applications.

The Groundbreaking Discovery: Flavoalkaloids Make Their Debut in Cannabis

The most electrifying revelation from this Stellenbosch study is the unequivocal evidence of flavoalkaloids in the Cannabis sativa L. plant for the first time in scientific history. For many, the term “flavoalkaloid” might sound unfamiliar, and for good reason: these compounds are relatively rare in the plant kingdom, making their discovery in a species as widely studied as cannabis a true scientific breakthrough.

So, what exactly are flavoalkaloids? Imagine a powerful fusion of two distinct classes of plant compounds, each with its own significant biological activities:

  1. Flavonoids: These are well-known plant pigments and secondary metabolites found in fruits, vegetables, and many herbs. They are celebrated for their potent antioxidant, anti-inflammatory, and neuroprotective properties.
  2. Alkaloids: These are nitrogen-containing organic compounds, often found in plants, that can have profound physiological effects. Many pharmaceutical drugs, such as caffeine and morphine, are alkaloids.

A flavoalkaloid, therefore, is a hybrid molecule where an alkaloid moiety is directly linked to a flavonoid backbone. This unique structural combination suggests the potential for novel and diverse biological activities, potentially offering a broader range of therapeutic effects than either component on its own. The Stellenbosch research tentatively identified 16 flavone derivatives belonging to four distinct classes of flavoalkaloids, primarily in the leaf extracts of the ‘Blue Sky’ cannabis strain. This specificity is crucial, indicating that the therapeutic profile of cannabis can vary significantly not only between strains but also across different parts of the plant.

rare compound in cannabis
Dr Magriet Muller in front of a high-resolution mass spectrometer at the LC-MS laboratory in Stellenbosch University’s Central Analytical Facility, where part of the practical work was conducted. Credit: Wiida Fourie-Basson

Why is this discovery so profoundly significant?

  • Uncharted Chemical Territory: Finding an entirely new class of compounds in cannabis opens up an uncharted frontier in phytochemistry. It implies that despite extensive global research, we are only just scratching the surface of Cannabis sativa’s true chemical complexity.
  • Promise for Novel Therapies: In other plant species, flavoalkaloids have been shown to exhibit a wide array of bioactivities, including anti-cancer, anti-inflammatory, antimicrobial, and neuroprotective effects. The identification of these compounds in cannabis offers exciting prospects for developing entirely new therapeutic agents, potentially leading to cannabis-derived medicines with unique mechanisms of action. This moves beyond the current focus on cannabinoids and terpenes, expanding the plant’s medicinal potential exponentially.
  • Reimagining Plant Utilisation: The detection of flavoalkaloids predominantly in the leaves of a specific strain suggests that cannabis leaves, often considered by-products in some cultivation practices, may hold significant untapped value. This could lead to more sustainable and economically viable cultivation models, where the entire plant biomass is utilised for its full chemical potential, benefiting local farmers and industries in South Africa.
  • Understanding the “Entourage Effect” Further: This discovery adds another layer of complexity to the “entourage effect,” the hypothesis that various compounds in cannabis work synergistically to enhance therapeutic outcomes. The presence of flavoalkaloids suggests a richer interplay of compounds than previously understood, potentially leading to more effective, whole-plant-based remedies.

This unprecedented finding by the Stellenbosch team is a testament to the power of advanced analytical chemistry and underscores the vast, unexplored medicinal potential within Cannabis sativa L.

Diving Deeper: The Rich Tapestry of Cannabis Phenolics

Beyond the groundbreaking discovery of flavoalkaloids, the Stellenbosch study performed an extensive characterisation of other phenolic compounds in the cannabis plant. Phenolics are a diverse group of plant metabolites widely known for their crucial roles in plant defence and their beneficial effects on human health, primarily through their antioxidant and anti-inflammatory properties. Their presence is a key component of the “entourage effect,” where these compounds interact with cannabinoids and terpenes to modulate and enhance therapeutic benefits.

The research identified a remarkable total of 79 phenolic compounds, with an impressive 25 of these being reported in Cannabis sativa L. for the very first time. This expanded inventory paints a much more detailed picture of cannabis’s non-cannabinoid chemical profile. These compounds can be broadly categorised as follows:

  • Flavones and Their Glycosides: The study detected key flavones such as luteolin, apigenin, chrysoeriol, and acacetin, many of which were present as O-glucuronide or O-diglycoside derivatives. These are common flavonoids, but their specific glycosylation patterns (attachment to sugar molecules) can influence their bioavailability and biological activity.
    • Strain-Specific Variability: A particularly interesting finding was the significant difference in flavone profiles between the strains. ‘Blue Sky’ (Strain C) exhibited markedly higher levels of C-glycosylated flavones (e.g., orientin, vitexin, cytisoside) and their O-glycosylated derivatives, which were either absent or in much lower concentrations in ‘Cape Cookie’ (Strain A) and ‘CBG’ (Strain B). This underscores the importance of genotype in determining the unique chemical signature of each cannabis variety. Conversely, strains A and B showed higher levels of acacetin O-diglycosides.
  • Flavonols and Their Glycosides: The researchers also tentatively identified flavonols like quercetin and kaempferol derivatives, including a quercetin O-hexosyl O-glucuronide derivative. These compounds are potent antioxidants and contribute to the plant’s overall protective qualities.
  • Phenolic Amides and Hydroxycinnamic Acid Derivatives: The study found a range of these compounds, including N-trans-coumaroyltyramine and N-trans-feruloyltyramine, along with various derivatives of coumaric acid and caffeic acid. These compounds are known for their antioxidant properties and have been investigated for roles in anti-inflammatory processes.
  • Novel Phenolic Acid Sulfates: In another significant first, two isomeric caffeic acid sulfates were tentatively identified exclusively in the inflorescence of the ‘Blue Sky’ strain. This discovery of sulfur-containing phenolics in cannabis represents a new frontier for research into their potential bioactivities and functions within the plant.

The comprehensive nature of this phenolic characterisation highlights the extraordinary chemical diversity within Cannabis sativa L. It reinforces that different strains and even different parts of the same plant possess unique chemical profiles, suggesting that targeted cultivation and processing could yield specialized extracts for specific health conditions. The contour plots generated by the analytical method provided a rapid visual comparison of these complex profiles, making these subtle yet significant differences immediately apparent to researchers.

rare compounds in cannabis

The Cutting-Edge Toolkit: Unravelling Complexity with Advanced Analytical Chemistry

The groundbreaking discoveries from Stellenbosch University were made possible by employing a highly sophisticated and optimised analytical methodology: Comprehensive Two-Dimensional Liquid Chromatography hyphenated to High-Resolution Mass Spectrometry (HILIC × RP-LC-HR-MS). This advanced technique is crucial for dissecting the immense chemical complexity of the cannabis plant, where hundreds of compounds, many structurally similar, coexist across a wide range of concentrations.

Here’s a detailed look at the methodology that enabled these profound insights:

  1. Sample Preparation: Isolating the Targets
    To specifically target polar phenolic compounds and avoid interference from well-known apolar compounds like cannabinoids and chlorophyll, a precise sample preparation strategy was crucial:
  • Freezing and Grinding: Plant samples (inflorescence and leaves) were snap-frozen with liquid nitrogen and finely ground using a mortar and pestle. This step preserves the integrity of the compounds and maximizes extraction efficiency.
  • Defatting with Hexane: The ground material was defatted three times with hexane through sonication and centrifugation. This process effectively removed non-polar cannabinoids, chlorophyll, and other lipids, ensuring that the subsequent analysis focused on the more polar phenolic compounds.
  • Extraction with Aqueous Acetone: After defatting, the polar phenolics were extracted using an aqueous acetone solution (30/70 v/v H2O/acetone), followed by sonication and centrifugation. The supernatant was then evaporated, freeze-dried, and re-dissolved in a dilute H2O/MeOH solution for analysis. This selective extraction method was designed to concentrate the target compounds and minimize interference.
  1. Comprehensive Two-Dimensional Liquid Chromatography (LC × LC): The Ultimate Separator
    Traditional one-dimensional (1D) liquid chromatography often struggles with complex plant extracts, as many compounds co-elute (come out of the column at the same time), making individual identification nearly impossible. 2D-LC overcomes this limitation by employing two different separation mechanisms in sequence:
  • First Dimension (¹D) – Hydrophilic Interaction Liquid Chromatography (HILIC):
    • Mechanism: HILIC separates compounds based on their polarity. Polar compounds interact strongly with the stationary phase (Acquity BEH Amide column, 150 × 1.0 mm, 1.7 µm) and are retained longer, while less polar compounds elute faster.
    • Purpose: This step effectively “spreads out” the highly polar phenolic compounds, providing an initial broad separation based on a property distinct from the second dimension.
    • Dilution and Modulation: The effluent from the ¹D column was diluted with a weak reversed-phase solvent and then introduced into an interface with two 80 µL loops, acting as a modulator. This process collects small fractions from the ¹D separation and rapidly injects them onto the ²D column, preventing peak distortion.
  • Second Dimension (²D) – Reversed-Phase Liquid Chromatography (RP-LC):
    • Mechanism: RP-LC separates compounds based on their hydrophobicity. Less polar compounds are retained longer on the stationary phase (Zorbax Eclipse Plus C18 column, 50 × 3.0 mm, 1.8 µm), while more polar compounds elute faster.
    • Purpose: By applying a different separation mechanism, RP-LC can resolve compounds that may have co-eluted in the HILIC dimension.
    • Fast Gradient: The ²D separation uses a very fast gradient (0.45 min) and a high flow rate (3 mL/min) to ensure rapid analysis of each ¹D fraction, maintaining high resolution.
  • Orthogonality and Peak Capacity: The combination of HILIC and RP-LC is highly “orthogonal” because these two modes separate compounds based on fundamentally different chemical properties. This means compounds that co-elute in one dimension are highly likely to be separated in the other, leading to vastly improved resolution. The Stellenbosch method achieved an “excellent separation performance” with a “practical peak capacity above 3000” and an average orthogonality of 75%. This level of separation is exponentially greater than what can be achieved with 1D methods, allowing for the detection of many more individual compounds.
  • Method Optimization: The team used an in-house developed predictive optimization algorithm (in Matlab R2019b) [31-33]. This software systematically explored a wide range of experimental conditions to find the optimal settings for analysis time, peak capacity, and resolution, further enhancing the method’s effectiveness.
  1. High-Resolution Mass Spectrometry (HR-MS) – Quadrupole Time-of-Flight (Q-TOF): Identifying the Unknowns
    As compounds exit the ²D column, they are immediately directed to a Q-TOF mass spectrometer. This instrument is essential for identifying the separated compounds:
  • Accurate Mass Measurement: Q-TOF provides highly accurate mass measurements of both precursor (intact) ions and fragment ions. This precision allows researchers to determine the exact molecular formula of an unknown compound, which is a crucial first step in identification.
  • MSE Fragmentation: The instrument was operated in MSE mode, which collects both low (4 eV) and high (10-30 eV ramped) collision energy data simultaneously. Low-energy data shows the intact molecular ions, while high-energy data provides characteristic fragmentation patterns. These “fingerprints” are invaluable for elucidating the structure of compounds, even those never before seen.
  • Tentative Identification: By combining accurate mass data, fragmentation patterns, UV spectral data (from the DAD detector), and relative retention times in both dimensions, researchers could tentatively identify 79 compounds, including the novel flavoalkaloids and phenolic acid sulfates.

This sophisticated analytical pipeline allowed the Stellenbosch team to peer into the complex chemistry of cannabis with unprecedented clarity, leading to discoveries that would have been impossible with less advanced techniques.

rare compounds in cannabis

The Road Ahead: An Exciting Journey of Discovery

The work by Magriet Muller and Professor André de Villiers is not merely an academic exercise; it is a powerful stride into the future of cannabis. It reminds us that even in plants we think we know well, nature often holds profound secrets waiting to be uncovered. As research continues to peel back the layers of Cannabis sativa’s intricate chemistry, the potential for new health solutions and economic opportunities grows exponentially.

For South Africa, this research is a beacon of hope and innovation. It champions local scientific excellence and offers a path toward a future where cannabis is understood and utilised for its full, multifaceted potential, contributing significantly to health, wellness, and a sustainable economy. The journey to fully understand cannabis and its immense potential has just become even more fascinating, and we eagerly await the next chapter of discoveries that will undoubtedly emerge from our vibrant scientific community.

You can read the full published paper here: “Comprehensive two-dimensional liquid chromatographic analysis of Cannabis phenolics and first evidence of flavoalkaloids in Cannabis” by Magriet Muller and André de Villiers, 2 August 2025, Journal of Chromatography A.
DOI: 10.1016/j.chroma.2025.466023

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Unlocking Growth: Deep Dive into Plant Growth Regulators (PGRs)

plant growth regulators

In the pursuit of optimal yields and pristine quality, cannabis cultivators are constantly seeking every advantage. While dialling in light, nutrients, and environmental control are standard practice, the world of Plant Growth Regulators (PGRs) introduces a powerful, yet often misunderstood, layer of influence. For many growers, the term “PGR” can spark confusion or even controversy. Some might unknowingly be using them through common supplements, while others might dismiss them without a full understanding of their intricate effects.

This week, we’re taking a candid look at PGRs. This isn’t about judgment, but about illuminating the science behind these potent compounds so you, as a grower, can make informed decisions in your cultivation space. We’ll explore what PGRs are, how they interact with your cannabis plants, and the critical considerations for their responsible and effective use.

What Are Plant Growth Regulators (PGRs)?

At their core, PGRs are simply phytohormones – naturally occurring chemical messengers that regulate virtually every aspect of plant growth, development, and physiological response. Plants produce these hormones internally in minute quantities, but even these tiny amounts orchestrate monumental changes, from seed germination and root formation to flowering and senescence.

The “PGRs” we discuss in cultivation refer to these phytohormones, whether they are:

  • Naturally derived: Extracted from organic sources that are rich in these compounds.
  • Synthetic: Chemically synthesised compounds designed to mimic the effects of natural phytohormones.

Understanding that these substances are, fundamentally, plant hormones is key. When applied externally, they can dramatically influence the plant’s natural processes.

plant growth regulators

The Master Conductors: Auxins, Cytokinins, and Gibberellins

Three classes of phytohormones stand out as the primary conductors of plant growth, each with distinct roles and complex interactions:

1. Auxins: The Architects of Direction

Auxins, such as Indole-3-acetic acid (IAA) and 1-naphthaleneacetic acid (NAA), are largely responsible for directing plant growth from the shoot apex downwards. Their key roles include:

  • Apical Dominance: Auxins produced at the shoot tip inhibit the growth of lateral (side) branches, promoting a single dominant main stem. This is why “topping” or removing the apical meristem is a common technique to break apical dominance and encourage bushier growth.
  • Root Development: Auxins are crucial for initiating and stimulating the growth of adventitious and lateral roots, making them vital in cloning and tissue culture processes.
  • Cell Elongation: They promote the lengthening of plant cells, contributing to overall plant height.

These vital phytohormones are not only responsible for directing shoot growth and root initiation but are also deeply involved in the very earliest stages of plant architecture. Their precise transport mechanisms, involving specialised protein pathways in both the phloem and through cell-to-cell polar transport, allow them to create gradients crucial for everything from defining the apical-basal axis in early embryogenesis to guiding the differentiation of vascular tissues throughout the plant. This complex internal movement ensures that growth is organised and resources are distributed effectively, shaping the fundamental structure your plant will build upon.

2. Cytokinins: The Stimulators of Division and Lateral Growth

Cytokinins (CKs), such as 6-benzylaminopurine (BAP) and kinetin, are primarily synthesized in root tips and young, actively dividing tissues. Their main functions are:

  • Cell Division: Cytokinins vigorously stimulate cell division (cytokinesis), a fundamental process for tissue formation and plant growth.
  • Lateral Bud Break: They promote the growth of lateral buds, effectively counteracting the apical dominance maintained by auxins, leading to bushier plants.
  • Delaying Senescence: Cytokinins help to maintain chlorophyll content and delay leaf ageing, keeping leaves greener for longer periods and enhancing photosynthetic activity.

While known for driving cell division and promoting lateral branching, cytokinins also play a direct role in maintaining the photosynthetic machinery of the plant. They do this by actively slowing down the enzymatic degradation of chlorophyll, keeping leaves greener for extended periods. Furthermore, cytokinins stimulate the opening of stomata, particularly in mature and ageing leaves, which directly influences the plant’s uptake of carbon dioxide for photosynthesis. This dual action on chlorophyll and stomatal function underscores their importance in sustaining the plant’s energy production efficiency.

3. Gibberellins (GAs): The Accelerators of Elongation and Flowering

Gibberellins (GAs), including Gibberellic Acid (GA3), are potent growth promoters known for:

  • Stem Elongation (Bolting): GAs are powerful stimulators of internode elongation, leading to increased plant height. This process is often called “bolting” and is crucial in many plant life cycles.
  • Germination and Flowering: GAs break seed dormancy and stimulate germination. They also play a role in initiating flowering, particularly in long-day plants, by mediating photoperiod signals.

Beyond their well-known role in stem elongation and breaking seed dormancy, Gibberellins significantly influence various reproductive traits. In cannabis, GAs have been shown to influence sex determination, with certain applications potentially increasing the proportion of male flowers. Their impact also extends to seed productivity; while often associated with increased growth, studies have revealed that Gibberellin applications can sometimes lead to lower seed mass in treated plants, highlighting a complex interaction with reproductive development that can vary by genotype and application method.

plant growth regulators

The Orchestration of Growth: Interplay and Balance

These phytohormones do not act in isolation. They form a complex regulatory network where their effects are interdependent:

  • Auxin-Cytokinin Balance: The ratio of auxins to cytokinins is critical. A high auxin-to-cytokinin ratio promotes root growth, while a low ratio favours shoot development and lateral branching. They often work antagonistically to control processes like apical dominance, but can also be synergistic, for example, in promoting vascular tissue formation.
  • GA Interactions: GAs often interact with both auxins and cytokinins to regulate overall plant architecture and reproductive development. As Alter et al. (2024) found, Gibberellins reduce auxin levels in the cannabis shoot apex under short-day conditions, contributing to a condensed inflorescence structure. Conversely,an  external GA application can impede proper inflorescence development by promoting stem elongation.

This intricate balance is why the intentional application of PGRs must be approached with precision and a deep understanding of their roles.

PGRs and Cannabis: Influencing Morphology, Yield, and Cannabinoids

For cannabis growers, the application of exogenous PGRs aims to modify plant architecture, optimise yields, and even influence cannabinoid content. Recent research offers crucial insights:

  • Modifying Plant Architecture: Studies have shown that applying auxins (like NAA) and cytokinins (like BAP), either alone or in combination, can significantly reduce overall plant height, internode length, and axillary branch length in cannabis. For instance, Burgel et al. (2020) and Mishchenko et al. (2022) observed that NAA and BAP applications resulted in shorter, more compact cannabis plants with reduced branching, achieving a compact growth habitus desired for indoor cultivation with limited space. This ability to make plants bushier and more manageable without reducing overall flower yield per unit area is a key benefit for many growers.
  • Impact on Cannabinoid Content: The influence of PGRs on cannabinoid content is more complex and can be genotype-specific. Mishchenko et al. (2022) found that while ascorbic acid, auxins, and Gibberellins significantly reduced cannabinoid content in hemp, nicotinic acid and cytokinins (BAP) actually increased it. Notably, BAP treatments significantly boosted cannabidiol (CBD) levels. Conversely, Alter et al. (2024) observed that exogenous GA and auxin negatively affected total cannabinoid content in their cannabis cultivar. These conflicting results underscore that the precise effect of cannabinoids depends heavily on the specific PGR, its concentration, the plant’s genotype, and the timing of application.
  • Yield Parameters: While some PGRs can reduce plant height, they often do not negatively impact the total inflorescence yield per plant or per unit area. In some cases, as Burgel et al. (2020) reported, even with reduced plant height and branching, the inflorescence dry weight yield remained similar to untreated control plants.
plant growth regulators

The Crucial Distinction: Natural vs. Synthetic PGRs

The term “PGR” often conjures images of harsh chemicals, leading some growers to believe they are avoiding PGRs while unknowingly using them. This distinction is vital:

  • Naturally Derived PGRs: Many popular organic supplements, such as seaweed or kelp extracts, are rich sources of natural auxins, cytokinins, and Gibberellins. These products are indeed PGRs, as they introduce plant hormones that influence growth. The key difference is often their concentration and the presence of other beneficial compounds that can buffer their effects.
  • Synthetic PGRs: These are laboratory-synthesised compounds designed for specific, often more potent, effects. Examples include paclobutrazol and daminozide. While some are used in ornamental horticulture to control plant size, many are not approved or safe for use on consumable crops due to potential health concerns regarding residues.

The misconception that “natural” means “not a PGR” is widespread. All substances that introduce phytohormones, whether extracted or synthesised, are indeed PGRs. The concern lies not in the label but in the compound itself, its concentration, and its intended application. Products containing synthetic PGRs, particularly those not approved for consumable crops, pose risks due to potential toxic residues that can affect human health (e.g., impact liver or kidney function) or alter the final product’s quality and taste. Legal, regulated cannabis markets typically impose strict testing for such residues.

A Grower’s Responsibility: Precision, Knowledge, and Intent

Using PGRs in cannabis cultivation demands meticulous attention and a commitment to understanding their profound effects. Here are key takeaways for responsible cultivation:

  • Knowledge is Power: Understand the specific roles of auxins, cytokinins, and Gibberellins, and how they interact. Research the precise effects of any PGR product you intend to use.
  • Genotype Specificity: Recognise that different cannabis strains (chemovars) will react uniquely to PGRs. What works for one strain may not work for another. Genotype-specific responses are a recurring theme in cannabis research.
  • Precise Application: Dosage, timing, and method of application (foliar spray vs. root drench) are critical. Even small deviations can lead to unintended or adverse effects on plant morphology, yield, and cannabinoid content.
  • Monitor and Document: Keep detailed records of your applications and plant responses. This allows you to observe subtle changes and refine your strategy over time, adapting to your specific cultivar and environment.
  • Holistic Management: PGRs are just one tool. They work best within a comprehensive strategy that includes optimised lighting, precise nutrient management (remembering that NPK balance can influence endogenous hormone pathways), and diligent environmental control.
  • Prioritise Safety and Quality: Always choose products from reputable suppliers who provide lab testing. Be wary of unverified claims. The goal is to enhance plant growth without compromising the safety or quality of your final product.

PGRs are powerful tools that, when used with respect and deep understanding, can revolutionise your cultivation practices. By embracing the science behind these potent compounds, you can unlock new levels of plant control, optimising your cannabis grow to meet your specific goals while ensuring a healthy, high-quality harvest.