Genetics 7 min read
GeneticsBreeding I: How Strains Happen
A grower crosses the two plants he loves with a paintbrush, gets four seeds, grows them out, and ends up with four plants that have nothing in common with each other and…
Level 4 · Master Grower
Level 4 
Master Grower
Mastery — breeding, scale and the finished craft.
8 lessons · 5 topics
0 of 5 topics complete
Plant biology 6 min read
Cannabinoid Biosynthesis: The Short Version
You've been told a hundred times that a strain "is" 22% THC. That number is the end of a long assembly line.
Level 4 · Master Grower
Harvest & cure 6 min read
Harvest & cureConcentrates and What They Demand of the Flower
A grower spends an afternoon making bubble hash from a bucket of trim and pulls out a smear of green sludge that tastes like burnt lawn.
Level 4 · Master Grower
Training 7 min read
Density, Training, and Canopy Economics
Ask ten growers how many plants to run in a square metre and you'll get ten answers and at least one argument.
Level 4 · Master Grower
Plant biology 7 min read
Mythbusting as a Discipline
The most expensive thing in growing isn't a light or a tent. It's a confident claim with no control behind it. "Crank the PK." "UV boosts THC."
Level 4 · Master Grower
Light 7 min read
LightSpectrum Engineering
Somewhere out there is a grower who spent four hundred euro on a UV bar because a forum told him it would push his THC up. He ran it for a full flower cycle.
Level 4 · Master Grower
Plant biology 7 min read
Stress as a Tool (and as a Cult)
There's a corner of growing that has gone slightly religious. Stress the plant, the gospel says, and she'll reward you.
Level 4 · Master Grower
Plant biology 7 min read
Terpenes: The Other Half of Quality
Two growers, same THC number on the lab report. One jar smells like cut grass and the other like lemon peel and diesel.
Level 4 · Master Grower
This level is one rung of the free certification path — four levels, quizzes and rank seals, no paywall.