How to grow Grandaddy Purple
Seb's take
Purple Urkle and Big Bud combine in Grandaddy Purple, winner of the 2015 Denver High Times Cannabis Cup for Best US Indica. A 75% indica-leaning hybrid at 21-23% THC, popular in equal measure among recreational and medical growers — the awards, one gathers, were not accidental.
Growing Grandaddy Purple: 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 10 weeks in flower — textbook timing. Textbooks, for once, being useful: here's ours.
She finishes around 150 cm: the sensible middle of the range. Most tents take her without argument — check yours against the light planner all the same.
She produces respectably: 458 – 549 g/m² or thereabouts when treated well. Consistency is her selling point — feed her properly and she keeps her end of the bargain.
THC tests around 23%, which is strong by any sensible chart. Respect it accordingly.
Learn to grow her properly:
Grandaddy Purple from other breeders
The same name, several hands. Every breeder’s version below is its own cut — different figures, different temperament, same family. The particulars above describe the lead listing.
- Blimburn Seeds feminized Seeds at Herbies →
A bigger number on the breeder's sheet (35% THC).
Common questions about Grandaddy Purple
How long does Grandaddy Purple take to flower?
Around 10 weeks of flowering, by the breeder's numbers.
Is Grandaddy Purple 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 Purple grow?
Around 150 cm. Standard tent territory.
How strong is Grandaddy Purple?
The breeder lists THC around 23%. Firmly in the strong band.