Books & gifts
by Green Candy Press
The Cannabis Grow Bible is a complete cultivation reference that covers every stage of growing cannabis — from seed selection and germination through to harvest, drying, and curing. Written by Greg Green, this book has shifted close to 60,000 copies worldwide and earned its nickname "the bible" among home growers for a reason: it actually answers the questions other guides gloss over.
Most grow guides give you the basics and leave you to figure out the rest. The Cannabis Grow Bible doesn't do that. Greg Green walks through indoor and outdoor setups, lighting systems, nutrient schedules, pest management, and — critically — how to maximise your yield without burning through your electricity bill or your patience. The book also gets into cannabis botany and genetics in a way that's genuinely useful rather than academic for the sake of it. You'll understand why certain strains behave the way they do, and how selective breeding works at a practical level.
The stealth growing section is one we get asked about a lot behind the counter. Green covers odour control, space-efficient setups, and low-profile techniques that other books either skip or treat as an afterthought. If you're working with a small tent in a spare room rather than a dedicated grow space, this is where the book really earns its keep.
One honest note: this is a thick, detailed reference. It's not a quick weekend read. If you want a 20-page pamphlet that tells you to water your plants and hope for the best, this isn't it. But if you want to actually understand what you're doing and why, it's the single best book we've carried in 25 years of running this shop.
First-time growers get the most out of this book. The Cannabis Grow Bible starts from absolute zero — soil composition, pH levels, light cycles — and builds up methodically. But experienced cultivators still pick it up for the genetics chapters and the advanced yield-optimisation techniques. According to research published in Frontiers in Plant Science, cannabis achieves optimum growth and productivity at 25 to 30 degrees Celsius with high light intensity and carefully controlled humidity — the kind of specific environmental data Green breaks down into actionable steps throughout the book.
We've sold this to people running a single autoflower in a wardrobe and to growers managing multi-light setups. The information scales because Green explains the principles, not just the steps.
| Specification | Detail |
|---|---|
| Author | Greg Green |
| Language | English |
| Copies sold | Nearly 60,000 |
| Key topics | Yield maximisation, stealth growing, botany, genetics, indoor and outdoor cultivation |
| SKU | HS0745 |
| Format | Printed book |
The book is structured so you can read it cover to cover or use it as a reference when something goes wrong mid-grow. Here's what you'll find inside:
Green's advice lines up well with what published research confirms. According to a study in Frontiers in Plant Science (2020), cannabis is best grown under 25 to 30 degrees Celsius growth temperature, high light intensity, and controlled environmental conditions to achieve optimum growth and productivity. The Cannabis Grow Bible translates this kind of research into practical grow-room settings — what wattage to run, how far to hang your lights, when to adjust your thermostat.
The genetics chapters also hold up. According to research published in PMC (2022), the growing number of recent studies on cannabis cultivation has expanded our understanding of how different genetic lines respond to environmental variables — something Green was writing about before much of this research was formalised. His breeding sections give you a working understanding of phenotype selection, backcrossing, and stabilising traits across generations.
| Growing Factor | Recommended Range (per research) | Cannabis Grow Bible Coverage |
|---|---|---|
| Temperature | 25-30 degrees Celsius | Detailed chapter with stage-specific ranges |
| Light intensity | High (400-1000W HPS equivalent) | Full lighting comparison with PAR values |
| Humidity (veg) | 40-70% | Week-by-week humidity targets |
| Humidity (flower) | 40-50% | Mould prevention protocols included |
| pH (soil) | 6.0-7.0 | Testing methods and adjustment guides |
| pH (hydro) | 5.5-6.5 | Hydroponic-specific chapter |
Complete your setup with a grow tent and carbon filter kit — the Cannabis Grow Bible's stealth chapter pairs directly with our Dark Box grow tents and activated carbon filters. If you're starting from scratch, grab a complete grow kit alongside this book and you'll have the knowledge and the hardware sorted in one go.
We've been selling grow equipment since 1999, and the pattern is always the same. Someone buys a tent, a light, and some seeds. They watch a few YouTube videos. Three weeks in, their leaves are yellowing, their pH is off, and they're posting blurry photos on forums asking "what's wrong with my plant?" The answer is almost always in this book.
The Cannabis Grow Bible isn't a replacement for hands-on experience — nothing is. But it's the difference between learning from your mistakes and learning from someone else's. Green has compiled decades of cultivation knowledge into a single reference that you can keep next to your tent and flip open when something looks wrong. The photo references for nutrient deficiencies alone have saved more grows than we can count.
The one limitation worth mentioning: the book covers cannabis cultivation broadly, not specific strain-by-strain guides. You won't find a chapter dedicated to growing a particular seed bank's genetics. What you will find are the universal principles that apply to every cannabis plant regardless of strain — and honestly, that's more useful. Strains come and go. The fundamentals of how cannabis grows don't change.
Compared to online guides, the advantage is simple: this book was written by one person with a coherent methodology, not 47 different forum users with contradictory advice. It's edited, structured, and — most importantly — it doesn't disappear when a website goes down. We'd pick this over any online-only resource every time.
Yes. The book starts from the absolute basics — what cannabis is, how it grows, what it needs. Greg Green assumes zero prior knowledge and builds from there. The structure means you can follow it chapter by chapter as your first grow progresses.
Both. Indoor cultivation gets the bulk of the pages, with full chapters on lighting, ventilation, and grow mediums. Outdoor growing has its own dedicated section covering site selection, natural light cycles, and climate considerations.
No. The Cannabis Grow Bible is only available in English. There's no official translation currently in print.
Green covers multiple lighting technologies including HPS, CFL, and LED. The principles of light spectrum, PAR values, and distance-to-canopy ratios apply regardless of which technology you're running. The fundamentals don't change even as LED tech improves.
It's the most complete single-volume reference we carry. Other books might go deeper on one topic — hydroponics, for example — but none cover the full range from genetics to harvest with this level of practical detail. Nearly 60,000 copies sold speaks for itself.
Yes, extensively. Yield maximisation is one of the core topics. Green covers training techniques like SOG, SCROG, topping, and LST, plus nutrient timing and environmental optimisation. Research confirms cannabis productivity depends on temperature (25-30 degrees Celsius), light intensity, and humidity control — all covered in detail.
It's one of the strongest parts of the book. Green covers odour management with carbon filters, noise reduction from fans and pumps, compact grow spaces, and low-power setups. If you're growing in a flat rather than a dedicated room, this section alone is worth the price of the book.
Last updated: April 2026
