Jack 47 F1 Fast Version (Sweet Seeds)

The original Jack 47 is one of Sweet Seeds masterpieces. The F1 Fast Version is about one week faster and produces up to 500-600g/m² in 7-8 weeks of flowering. It’s a hybrid of Jack 47 Auto, and an elite clone of the original Jack 47, that amazes by exceptionally vigorous plants and thick, resin-soaked buds. The genetic background is 75% Sativa and 25% Indica. Flavours? Fresh & Sweet!

Genetics 75% sativa - 25% indica
Parents Jack 47 Auto x Jack 47
Flowering period 7-8 weeks
THC% Medium
CBD% Unknown
Yield (indoor) 500-600g/m²
Height (indoor) Medium
Yield (outdoor) High
Height (outdoor) Medium
Harvest time (outdoor) September
Available as Feminized seeds
Seed bank Sweet Seeds
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Starting from € 36.00
3 seeds € 36.00
5 seeds € 58.00

Easy Germination

Easy Germination

Cannabis Propagator

Cannabis Propagator


Zativo caters to private customers only, and does not supply commercial or industrial growers with large amounts of cannabis seeds. If we have reason to suspect that the ordered seeds are destined for growing cannabis on a larger-than-private scale, we reserve the right to dismiss that specific order. 


Jack 47 F1 Fast Version: Sweet Seeds' faster-flowering Jack 47

Sweet Seeds is extremely proud to present their Jack 47 F1 Fast Version. This variety is a faster-flowering version of Jack 47, as one would imagine. With extreme potency, this cultivar generates solid highs and fascinating experiences. The aromas and flavors are super fresh and sweet. If one’s looking for a special type of sativa-dominant strain, this is it.


Jack 47 F1 Fast Version emerged after Sweet Seeds hybridized the Jack 47 Auto, with its elite photoperiod counterpart. This resulted in a photoperiod plant, with the fast-flowering span received from its autoflowering parent. This 75% sativa and 25% indica strain sets the bar high in regards to quality. The highs are very uplifting and happiness inducing. Perfect for hiking excursions, upbeat activities, and socializing with friends or coworkers. The THC levels are quite high; novice tokers should pace themselves as to not overdo it.


Bountiful amounts of nugs are to be expected! Indoors, Jack 47 F1 Fast Version generates around 500-600g/m². Outdoor ganja gardeners will also experience solid amounts of buds, sitting gently on their stems. The buds become very resinous; the shiny crystals filled with the desired cannabinoids are very bright, so get out your Raybans! One can expect Jack 47 F1 Fast Version to reach medium heights. When this cultivar receives perfect temperature levels of around 25°C, humidity levels hitting that 50% mark, and all the required nutrition, Jack 47 F1 Fast Version will surely thrive. The flowering time spans between 7-8 weeks, which is a great asset for impatient growers.

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Jack 47 F1 Fast Version is part of or contains the following cannabis genetics
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