Description
Born from crossing the acclaimed Jack 47 with Jack 47 Auto, this feminised sativa-dominant variety from Sweet Seeds carries the full aromatic signature of its lineage: a crisp blend of ripe fruit and cool mint that translates cleanly into the finished smoke. THC sits in the 16 to 24% range alongside a meaningful CBD presence, producing an effect that is energetic and clear-headed without tipping into edge.
For cultivation, the fast-version genetics are the headline. A 6 to 8 week flowering window gives indoor growers meaningful flexibility, fitting comfortably into perpetual harvest schedules or finishing a second run in a season where a standard photoperiod would stall. Indoors, expect 450 to 600 g/m2, a reliable return for a 1.2 x 1.2 m tent. Outdoor plants climb into very high yield territory above 750 g per plant, rewarding anyone with a sunny, open plot. Medium height keeps canopy management straightforward without demanding heavy training. Feminised seeds mean a clean, predictable crop from the first week of veg. If the original Jack 47 is on your shortlist, this fast version earns its place at the top.
Jack 47 F1 FAST Version Feminised Seeds
Only 5 left
Description:
A sativa-dominant cultivar from Sweet Seeds that closes in 6 to 8 weeks without sacrificing the fruity, minty character that made the original Jack 47 a grower's staple.
Best For
Beginner growers seeking an uplifting, energizing head high
Key Details
FAQ
All you need to know
about this product
Jack 47 F1 Fast Version delivers the crisp fruity-mint character of a classic in just 6 to 8 weeks, ready for beginner and experienced growers who want very high yields without the wait.
Jack 47 F1 Fast Version is rated easy to grow and was specifically bred with beginner growers in mind. Its feminised seeds remove the need to identify and pull male plants, and the forgiving sativa-dominant structure keeps things manageable at a medium height indoors.
The Fast Version genetics come from crossing the original Jack 47 with Jack 47 Auto, which significantly compresses the flowering window to just 6 to 8 weeks. That makes it a strong fit for perpetual harvest setups where cutting days off a cycle genuinely matters.
Indoor growers can expect a high yield in the 450 to 600 grams per square metre range, while plants given more space to develop outdoors can push above 750 grams per plant. Those are serious numbers for a strain that finishes this quickly.
The smoke carries a clean blend of ripe fruit and cool mint that reflects the Jack 47 lineage closely. The effect sits in an energetic, clear-headed space thanks to THC levels between 16 and 24% balanced by a meaningful CBD presence, so it stays uplifting without becoming edgy.
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