How to grow Jack Flash
THC 17% 
Flowering 60 - 70 days Taste
Seb's take
A Cannabis Cup winner from Sensi Seeds, splitting Sativa and Indica almost down the middle for a euphoric high with none of the usual trade-offs. Citrus, lemon and earthy wood on the nose; natural resistance to mould and fungi makes her a sound outdoor choice. Regular seeds, for growers minded to breed their own.
Where it comes from
Jack Herer crossed with a Super Skunk and Haze pairing, from Sensi Seeds, a Cannabis Cup winner the record states plainly enough to repeat. The genetics split sativa and indica almost down the middle, fifty-five to forty-five in the indica's favour, and that balance is the whole point: the euphoria of one line with the composure of the other. Regular seeds, for growers minded to keep their own mothers and fathers.
Nose & flavour
Citrus and lemon lead, sweet at the edges, with earthy wood grounding the whole thing. A well-rounded nose rather than a loud one, bright on top and solid underneath. The sort of profile that ages gracefully in the jar, and gives nothing away too early.
The high
Euphoric and uplifted, with the energy of the sativa side kept honest by a relaxed indica undertow. Happy throughout, and balanced enough to suit most hours of the day. At seventeen per cent THC she is honest about what she is, a pleasant, even-handed high rather than a knockout.
Growing it
She flowers in sixty to seventy days and carries natural resistance to mould and fungi, which makes her a sound choice outdoors where such things matter. Indoors, Sensi recommend flipping to 12/12 from the very start of flowering and running a Sea of Green to fill the canopy with calyxes. Expect above-average height, so give her the room. No firm yield figure is recorded; the buds, by the breeder's account, are as good as any you will have grown.
Learn to grow her properly:
Effects
Common questions about Jack Flash
How long does Jack Flash take to flower?
Around 9 weeks of flowering, by the breeder's numbers.
Is Jack Flash an autoflower or a photoperiod strain?
Regular photoperiod seed — expect males and females in the packet, and plan to identify the males early.
How strong is Jack Flash?
The breeder lists THC around 17%. The gentler end of the scale.
What does Jack Flash smell and taste like?
Citrus leads the nose — sharp, clean, and inclined to announce itself.
