How to grow Grandaddy Black
Seb's take
Grandaddy Purple and Black Domina, two indica powerhouses, combine in Grandaddy Black for heavy yields of dense, sticky flowers. Sweet, fruity and earthy on the nose; the high is happy before it turns relaxed and properly sleepy at 23% THC — the sitting-down sort, and no mistake.
Growing Grandaddy Black: what to expect
Feminized, so you'll not be sexing plants or evicting males. Photoperiod, so veg lasts exactly as long as you decide — see the vegetative stage on how long that ought to be.
Expect around 9 weeks in flower — textbook timing. Textbooks, for once, being useful: here's ours.
She finishes around 140 cm: the sensible middle of the range. Most tents take her without argument — check yours against the light planner all the same.
A heavy producer at 600 g/m². Plan your drying space before harvest week rather than during it — she will test the dimensions of the thing.
THC tests around 23%, which is strong by any sensible chart. Respect it accordingly.
Sweetness leads on the nose, and she doesn't whisper it.
Grower reports give her a relaxed lean: unhurried company for an unhurried evening.
Learn to grow her properly:
Common questions about Grandaddy Black
How long does Grandaddy Black take to flower?
Around 9 weeks of flowering, by the breeder's numbers.
Is Grandaddy Black 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 Grandaddy Black grow?
Around 140 cm. Standard tent territory.
How strong is Grandaddy Black?
The breeder lists THC around 23%. Firmly in the strong band.