Foundations 7 min read
Level 1 
Green Thumb
Foundations — your first healthy harvest, mistake-first.
This is the map of the road. New? Start here points you at Level 1; everything below is the same journey in four stages.
22 lessons · 7 topics
0 of 7 topics complete
Foundations Water & media 5 min read
Water & mediaThere's No Best Growing Medium (But There's a Best One for You)
I switched mediums every few grows. Soil because someone said it was forgiving. Coco because the forums said it was faster.
Level 1 · Green Thumb
Foundations 6 min read
The Shopping List (and the Overspender)
A grow room isn't a room with a plant in it. It's a controlled environment: light-tight, air-managed, containable.
Level 1 · Green Thumb
Foundations 6 min read
Harvest & cure 4 min read
Harvest & cureDrying Out Your Plant Won't Make It Stronger
Someone on a forum told me to stop watering in the last two weeks of flower. "The plant puts out more trichomes when it's stressed," they said.
Level 1 · Green Thumb
Foundations 6 min read
Autoflowers: The Plant on a Clock
Autoflowers flower on a timer, not a light switch. That makes them beginner-friendly — as long as you stop treating them like a photoperiod plant.
Level 1 · Green Thumb
Foundations 6 min read
Germination Without Drama
Germination is waking the seed up. Three things make it happen: moisture, warmth, and darkness.
Level 1 · Green Thumb
Light 3 min read
LightUV Lights Won't Make Your Bud Stronger
A lad I know spent €180 on a UV-B bar for his tent. The listing said it would boost trichome production and increase potency.
Level 1 · Green Thumb
Water & media 6 min read
Watering and the Root Zone
Roots need air more than they need water. Not instead of — more than. In order of priority, roots want air, then water, then nutrients.
Level 1 · Green Thumb
Nutrition 4 min read
NutritionYou're Probably Overfeeding
I followed the feed chart on the bottle. EC north of 2. 0 in flower. Whenever I saw burnt tips I backed off just barely enough to keep things moving.
Level 1 · Green Thumb
Light 7 min read
Foundations 6 min read
The Veg Weeks: What to Actually Do
Veg is where the plant builds the frame that holds your harvest. The main job is patience — and resisting the urge to fiddle.
Level 1 · Green Thumb
Foundations 6 min read
The First Three Weeks: What Normal Looks Like
You can't spot a problem if you don't know what healthy looks like. That's the whole point of this lesson.
Level 1 · Green Thumb
Light 4 min read
12/12 Isn't the Only Way to Flower
Twelve hours on, twelve hours off. That's what you learn on day one. Cannabis needs twelve hours of darkness to flower. Don't mess with it. It's the rule.
Level 1 · Green Thumb
Water & media 5 min read
You Will Overwater (Everyone Does)
You're going to overwater your plant. Everyone does.
Level 1 · Green Thumb
Nutrition 6 min read
Feeding: Not Yet, and Then Barely
The governing principle of feeding is the simplest rule in the whole book: less is more. You can always add more food. You can't un-feed a plant.
Level 1 · Green Thumb
Plant health 6 min read
Plant healthFirst-Grow Triage
The single most important skill in growing isn't feeding, watering, or training.
Level 1 · Green Thumb
Harvest & cure 4 min read
Your Lower Buds Aren't Worth Keeping
I used to trim everything. Top colas, middle branches, bottom buds — all went into the same jar, dried and cured together.
Level 1 · Green Thumb
Plant health 4 min read
That Yellow Leaf Isn't What You Think
A leaf goes yellow. You panic. You Google it, find a colourful deficiency chart with sixteen options, decide it's nitrogen, and dump more nitrogen into the pot.
Level 1 · Green Thumb
Genetics 4 min read
Your Plant's Potency Ceiling Is Genetic
I spent two years trying to push a cultivar past its limits. Better lights. Stronger nutrients. UV bars. PK boosters.
Level 1 · Green Thumb
Genetics 5 min read
Your Strain's Smell Is in Its DNA
I spent a year trying to change how my plants smelled. I read that cold night temperatures bring out certain aromas. That flushing with molasses boosts sweetness.
Level 1 · Green Thumb
Genetics 5 min read
The Entourage Effect Isn't That Simple
I became an entourage effect evangelist.
Level 1 · Green Thumb
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