Hi, I’m Flo!
I’m a passionate hobby botanist and self-sufficiency enthusiast, and cannabis is the plant I have completely fallen in love with: the way it looks, the way it grows, the smell when you open the tent. I have been growing for many years, mostly feminised strains, now and then autoflowers. My big, rather over-the-top goal is to have grown every strain myself at least once someday. What fascinates me most right now is old genetics, meaning the landraces from Afghanistan, Nepal, Jamaica and many other regions.
What matters most to me when growing is really beautiful resin production. Here in I Grow Pedia I share what I have learned, including my mistakes, always with sources and honest when something is not yet firmly established.
Why I do this – Flo's view · World map: cannabis & the law
– Flo · on X: @MisterSm3ilz420
How this wiki works
Facts with sources
Factual statements are backed by verifiable sources – preferably reviews, studies and official bodies.
Honest classification
Every finding is rated: well established or preliminary. If something is unclear, it says so.
Personal experience
My own observations appear in separate, colour-coded boxes – kept apart from the facts.
Look out for the little badges in the articles: they show you at a glance how certain a statement is – and where research is still in its early days.
From Flo’s grow
A few impressions from my latest runs
- From Flo’s grow: Oct 2026 – current run with Mango Kush, Lemon Cherry Gelato, Rainbow Sherbet and Blueberry, almost finished
- From Flo’s grow: Oct 2026 – “Soon …”: shortly before harvest
- From Flo’s grow: Oct 2026 – Grizzly Glue, Poison Envy, Eleven Roses and LA Kush Cake
- From Flo’s grow: Aug 2025 – Passion Fruits and Tangerine Dream
- From Flo’s grow: Aug 2025 – Fruit Punch and Black Apple Hitchcock, one week before harvest
- From Flo’s grow: Aug 2025 – start of flowering week 3, with a very resinous Red Hot Cookies phenotype
- From Flo’s grow: Aug 2025 – Black Apple Hitchcock, Fruit Punch and Passion Fruits, ready for harvest
- From Flo’s grow: Aug 2025 – White Truffle: on this plant every top bud split
New in the wiki
Light & Spectrum: What Do Lumens Mean, Why Do Indoor Lamps Use Blue/Red/Violet Instead of Sunlight & Does Under-Canopy Light Really Work?
Why lumens are the wrong metric for plants (PAR, ePAR, PPFD & DLI explained), how sunlight shifts across the seasons, why violet ‘blurple’ LEDs are outdated, and why bifacial leaves are built for light from above – not below.
Nutrient Deficiencies, Pests & Mould: Complete Diagnostic & IPM Guide
Mobile vs. immobile nutrients, pH lockout & overfeeding, major cannabis pests with beneficial insects (IPM), neem oil in veg, and preventing powdery mildew & bud rot.
Cannabis Trichomes: How Resin Glands Develop, What Genetics Dictate & How to Boost Resin
The 3 glandular trichome types under the microscope, CBGA biosynthesis in secretory disc cells, genetics vs. environment (PPFD, UV, controlled drought stress), myth-busting and harvest ripeness.
Purple, Red, Blue or Black Buds: Why Do Cannabis Plants Change Colour in Flower?
How anthocyanins (keracyanin, cyanidin & delphinidin), genetics (MYB transcription factors), cool night temperatures and vacuolar pH drive floral colouration – vs. phosphorus deficiency.
PGR Weed Explained: Why Rock-Hard Synthetic Buds Are Low-Quality and Hazardous
Identifying synthetic plant growth regulators (paclobutrazol, daminozide/Alar, chlormequat): how they suppress trichomes and terpenes, documented toxicological risks, and safe natural biostimulants.
The Male Cannabis Plant, Pollen Harvesting, Controlled Breeding & Hermaphrodites
Early sexing at preflower, why males matter for breeding, harvesting & freezing pollen, S1 feminisation with colloidal silver, and true hermaphrodites vs. late-flower stress bananas.
Storing Cannabis Seeds & Successful Germination: Science, Methods & Seed Quality
Orthodox seed biology, Harrington’s rules, fridge/freezer storage, 4 germination methods compared, the first 14 seedling days, and spotting aged or white-label bulk seeds.
Companion Planting & the Clover Family as a Living Nitrogen Reservoir
How white clover, crimson clover & alfalfa fix atmospheric nitrogen via Rhizobium root nodules, proven companion plants for pest management, and indoor vs. outdoor trade-offs.
The G13 Dossier: CIA Super-Strain or Afghanica Clone? Myths, Facts & Whether the Original Genetics Survive
Did G13 really come from a government lab in Mississippi? What the studies by ElSohly & Turner (1984/2000) show, how Neville Schoenmakers bred with the G13 cutting from 1987 – and where the original genetics survive today.
Strain Catalogue & Categorisation: From Historical Milestones to Modern Lines (Haze, Cookie, Runtz & Co.)
Systematic overview: landraces, 1970s–90s foundational hybrids, modern cult lines (incl. the namesakes of the 3 Tigers 🐾), chemotypes (Types I–V) and morphology.
Original Landraces by World Region: From Hindu Kush & Thai to Durban & Acapulco
21 documented landraces across 5 world regions (Central/South Asia, Southeast Asia, Africa, Americas/Caribbean and North Asia/Ruderalis) with botany, terpenes and sources.
Cultivation & Plant Training Methods: ScrOG, LST, Topping, HST, SOG & Substrates Compared
How LST, ScrOG, SOG, Topping, FIMming, Main-Lining, Supercropping and Lollipopping work – plus soil, coco & hydroponics and suitability for 1–3 plants (§ 9 KCanG).
What is a landrace?
Definition, origins, difference from modern hybrids – and why not every “landrace” on the label is a landrace inside.
Growing basics: your first grow
Indoor or outdoor, light, medium, nutrients, watering, phases and typical beginner mistakes – with the legal framework.
Autoflower, feminised, regular & F1 hybrids – seed types explained
How feminised seeds are made, what makes autoflowers different and what “F1” means genetically.
Sativa, indica & hybrids – what the terms really mean
Botany vs. marketing – and what genetic and chemical studies have found out about the labels.
Cannabinoids: THC, CBD, CBG & co. – what they do
What does THC do in the body, why does CBD work so differently, and what is behind the hype around CBG and CBN?
Categories
Strains
Strain portraits from my own grows – honest, with photos and notes.
Landraces
Old, regionally evolved cannabis populations: origin, diversity and conservation.
Growing (basics)
From germination to harvest: the basics of legal home growing.
Deficiencies & pests
Recognising nutrient deficiencies, pests and diseases – and preventing them.
Cannabinoids & effects
THC, CBD, CBG & co.: what research knows – and what it doesn’t (yet).
Sativa, indica & hybrids
What the terms originally meant – and why they hardly predict effects.
Autoflower, feminised, regular & F1 hybrids
Seed types explained clearly – with their pros and cons for home growing.
Mutants & oddities
Unusual leaf shapes, colours and other curiosities from the grow.
Seed banks & breeders
Neutral information on breeding and genetics – no advertising and no recommendations.
The truth about cannabis (myths & facts)
Common claims fact-checked – with sources instead of gut feeling.
Medical findings
What studies and regulatory agencies say – factual and without promises of cure.
Legal matters in Germany
The most important rules of the German Consumer Cannabis Act (KCanG) for adults.
My principles for this wiki
- Adults only. This wiki is aimed exclusively at people aged 18 and over.
- Legal and responsible. It is about private home growing as permitted in Germany under the KCanG.
- No advertising. No shop links, no affiliate links, no sponsorship – not from seed banks either.
- No promises of cure. Medical topics are presented factually and are no substitute for seeing a doctor.
- Transparency. If I don’t know something for sure, I say so.
- Incorruptible & real efficacy only. No paid placements and no free seeds or cuttings (§ 6 KCanG). Neither test samples nor voluntary financial support ever buy influence over articles, logos or reviews – only proven biological and technical efficacy counts (our Code of Independence).