How to grow Jack 47 F1 Fast Version
THC 24% 
Flowering 49 - 56 days 
Yield 500 – 600 g/m² Taste
Seb's take
Jack 47 crossed back with its own autoflowering line, producing a fast version with a fresh, sweet lemon nose and an incense edge worth noting. The effect opens as a cerebral buzz before relaxation spreads to the extremities. Best appreciated, the breeder insists, through a dry herb vaporiser.
Where it comes from
Jack 47 crossed back with its own autoflowering line to produce a fast version, the photoperiod's character with a good deal of the auto's speed bred in. Sweet Seeds keep it in the family, which is the tidy thing to do when the family already works. Seventy-five per cent sativa, and she flowers faster than either the original photoperiod or most of her rivals.
Nose & flavour
A fresh, sweet nose with lemon running through it and a thread of incense underneath, the citrus doing the lead work and the incense adding a bit of character. The breeders reckon she shows best through a dry herb vaporiser, and on the evidence of that terpene profile they may have a point.
The high
It opens as a cerebral buzz, bright and uplifting, then relaxation spreads slowly to the extremities, a considerate arc rather than a sudden drop. Euphoric and energetic at the top, easing gently at the base. THC runs to twenty-four per cent at the ceiling, so the measured approach pays.
Growing it
The chief virtue is speed: she finishes in roughly forty-nine to fifty-six days, quick for a photoperiod, while still turning out a solid 500 to 600 g/m². Feminized, so no males to rogue out. No height figure is recorded, so judge her stretch by eye and give her room accordingly. A fast finisher on a soldier's schedule, and none the worse for the pace.
Learn to grow her properly:
Effects
Common questions about Jack 47 F1 Fast Version
How long does Jack 47 F1 Fast Version take to flower?
Around 8 weeks of flowering, by the breeder's numbers. Quick, as these things go.
Is Jack 47 F1 Fast Version 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 strong is Jack 47 F1 Fast Version?
The breeder lists THC around 24%. Firmly in the strong band.
What does Jack 47 F1 Fast Version smell and taste like?
The nose runs sweet — dessert-adjacent, without apology.
