How to grow Alpha 21
Seb's take
Totally Alpha OG, Haze IBL and Zalla combine under a breeder who started as a trimmer before founding his own seedbank — the OG backbone shows in the therapeutic reputation that followed. Wood, sweetness and spice on the nose; the effect is sleepy, medicinal, happy, at a reported 30% THC that asks for a staircase-in-the-dark sort of respect.
Growing Alpha 21: what to expect
Feminized photoperiod seed: every plant a female, and flowering starts when you change the lights — which puts the calendar in your hands. The photoperiod lesson covers using that control well.
Flowering runs the standard 8 weeks — no surprises, which in this business is a compliment. The flowering stage guide covers what each of those weeks should look like.
A middling 120 cm or so at maturity — tall enough to yield, short enough to manage. Standard tent territory; the light planner sorts the hanging height.
The yield is, in plain terms, heavy — 600 g/m² when she's looked after. Branches will need support before they need sympathy; see supporting heavy colas.
THC of 30% by the breeder's numbers — the top shelf of the scale. Approach as you would a staircase in the dark.
The nose runs sweet — dessert-adjacent, without apology.
Effects report as chiefly uplifting — she raises the tone of a room rather than lowering the lights.
Learn to grow her properly:
Common questions about Alpha 21
How long does Alpha 21 take to flower?
Around 8 weeks of flowering, by the breeder's numbers.
Is Alpha 21 an autoflower or a photoperiod strain?
A feminized photoperiod strain — flowering starts when you switch the lights, so the timing is yours to control.
How tall does Alpha 21 grow?
Around 120 cm. Standard tent territory.
How strong is Alpha 21?
The breeder lists THC around 30%. Among the strongest figures in the catalogue.