Grow 101: From Seed to Harvest

Every stage has its own handful of jobs. This series works through them in order — what to do, what it turns on, and what you should be writing down. The numbers behind it come from the calculators.

Flowering cannabis plant shortly before harvest in a grow tent
This is what stands at the end of the series. The way there is a few months and a handful of decisions.
  1. 1 Germination Paper towel or soil, how deep, how warm — and what to do when nothing stirs.
  2. 2 Seedling Watering, light, the first feed and the moment to pot on.
  3. 3 Vegetative Potting on, training, and deciding how big the plant should get.
  4. 4 Flowering Thinning, supporting, moving air — and what you are better off leaving alone.
  5. 5 Flushing The last week before the cut — and why the argument about it rests on a misunderstanding.
  6. 6 Harvest & Drying Reading ripeness, cutting, drying, curing — the step where most of the work can still be lost.

The series grows chapter by chapter. Read the start now and you have the rest when you need it.

What this series does — and what it does not

Every chapter covers one stage and answers the same question: what needs doing now? The jobs, the order, the usual mistakes. No chapter spreads target values out — those come with a calculator on the calculator pages, and every chapter links the ones that belong to it.

That separation is deliberate. If you want to know how something is done, you read here. If you need a number, you put it into the calculator — where it sits with its reasoning and is maintained in one place instead of seven.

Before you start

Three things decide more than any equipment: light that arrives, air that moves, and the patience to leave a plant alone now and then. Everything else can be added along the way.

What should run from the beginning is the record. Not because bookkeeping is fun, but because every grow happens once: what you do not write down on the first, you cannot improve on the second. A start date and a few lines a week are plenty.

Write it down instead of remembering it

CRIS keeps your grow journal offline on your phone — notes, readings, costs and feeding in one place. No account, no cloud.

Get it on Google Play