Level 3

Advanced Cultivator

Plant biology — cannabinoids, terpenes and the deep how.

9 lessons · 5 topics · 3 optional deep-dives

Advanced Cultivator rank seal

0 of 5 topics complete

Flower & finish 8 min read

Flower Feeding and the Taper

Here's the thing most beginners get backwards: flowering is not the time to feed harder. It's the time to feed differently, and then feed less.

Level 3 · Advanced Cultivator
Flower & finish 7 min read

Humidity in Flower: The Bud-Rot Window

The Sleepwalker did everything else right. Light dialled. Nutrients dialled. Temperature dialled. Never checked humidity once.

Level 3 · Advanced Cultivator
Water & media 8 min read

Hydro, If You Must

A YouTube video sold me on hydro.

Level 3 · Advanced Cultivator
Environment 8 min read

Outdoor and the Irish Climate

I read that outdoor cannabis grows bigger, costs nothing, and the sun does all the work.

Level 3 · Advanced Cultivator
Plant health 8 min read

Pests and Diseases: The Unwanted Guests

There was a single white dot on the underside of a fan leaf. I noticed it on a Tuesday, decided it was probably dust, flicked it off, and carried on.

Level 3 · Advanced Cultivator
Flower & finish 9 min read

The Flip: 12/12 and What Changes

You've kept a plant alive and vegged one without helping it to death. Now comes the part where the money is made or lost: the flip.

Level 3 · Advanced Cultivator

Going deeper Advanced · optional

The science behind the advanced cultivator lessons — research-grade deep-dives for when you want the full picture. Skip them and you'll still grow great bud; read them and you'll understand exactly why.

Plant biology 9 min read

How a plant actually builds potency

Here's what catches most growers off guard: your plant doesn't produce THC.

Level 3 · Advanced Cultivator
Plant biology 8 min read

Is the entourage effect real?

The "entourage effect" — the idea that cannabis compounds work synergistically to produce effects different from isolated cannabinoids — is a plausible hypothesis with…

Level 3 · Advanced Cultivator
Plant biology 9 min read

Can you change how a strain smells?

Your strain's smell is determined by which terpene synthase genes it expresses and at what level.

Level 3 · Advanced Cultivator

This level is one rung of the free certification path — four levels, quizzes and rank seals, no paywall.