Your grow library
Browse the whole curriculum. Free lessons are open; unlock the rest anytime.
Leaf Diagnostics
Identify 27 leaf problems — confirm and fix.
Glossary
Every term a commercial grower needs.
01 Plant-Science Foundations
The four master levers — light, VPD, leaf temperature, and CO2 — and how they govern every gram you harvest.
02 Genetics, Propagation & the Mother Room
Uniformity is a decision you make in propagation — clone clean, feed light, root right, and never let a viroid touch a blade.
03 Vegetative Growth
Build the skeleton the flower hangs on — architecture, training, and the veg setpoints that decide your yield ceiling.
04 Flowering
Eight weeks that decide the harvest — flip, stretch, bulk, ripen, and cut at the right trichome.
05 Plant Nutrition & the Water Room
Dial to EC, not to grams — the brand-agnostic feed program and fertigation-room discipline that a forgiving crop actually rewards.
06 Environment & Crop Steering
Set the room, read the root zone, and steer the plant vegetative or generative on demand — by the numbers, not the calendar.
07 Irrigation & Media (Coco vs Rockwool)
Two substrates, one rulebook: how the P0–P3 curve, EC discipline, and slab conditioning turn water into a yield lever.
08 IPM & Leaf Diagnostics
Read the leaf, name the cause, act on first detection — prevention beats every miticide you can't spray on flower.
09 Harvest, Dry, Trim & Cure
The harvest sets your quality ceiling — dry, trim, and cure decide how much of it survives to the jar.
10 Facility, Operations & Compliance
Run the room like a factory: turns, teardown, data, and clean COAs — because consistency and pass rate, not a hero harvest, define good.
11 Business & Realistic Expectations
What commercial cannabis actually costs, actually pays, and actually kills — before you sign the lease.