How to grow Critical Jack
Seb's take
Critical + crossed with Jack Herer, pairing Dinafem's own powerhouse with one of cannabis's most decorated names. Citrus, lemon and orange on the nose, sweet and piney beneath; the high is uplifted and euphoric, relaxed and focused in equal measure. A powerhouse strain that doesn't need much of an introduction.
Growing Critical Jack: 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.
Tall, at 300 cm or better. Indoors that means training from early on; outdoors it means picking a spot the neighbours can't see over.
A heavy producer at 625 g/m². Plan your drying space before harvest week rather than during it — she will test the dimensions of the thing.
THC tests around 21%, which is strong by any sensible chart. Respect it accordingly.
The aroma is citrus-forward: zest first, everything else in its wake.
The dominant note in the reviews is uplifting; daytime company, by most accounts.
Learn to grow her properly:
Common questions about Critical Jack
How long does Critical Jack take to flower?
Around 9 weeks of flowering, by the breeder's numbers.
Is Critical Jack 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 Critical Jack grow?
Around 300 cm. Plan your headroom before she plans it for you.
How strong is Critical Jack?
The breeder lists THC around 21%. Firmly in the strong band.