Silent Seeds Critical Jack

n° Seeds: 3 seeds

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Silent Seeds Critical Jack

Critical Jack is a premium feminized Sativa- dominant cannabis seed synonymous with great productivity, genetic stability and vigor which has fully demonstrated all its high quality over the years. The genetic lineage of this exceptional cannabis strain speaks for itself, as it is the worthy heir of two legendary strains such as Jack Herer and Critical + . Furthermore, it has proven to be particularly resistant , in fact growers from all over the world have obtained excellent results with this strain , even in different and adverse climates .

Structural development

Critical Jack is a cannabis variety that generally produces large plants overall , with an open structure that allows light to penetrate evenly and at the same time allows for optimal ventilation. of the whole, especially in the flowering phase. Its leaves are quite large, with long and quite thin leaflets. The strong vigor and well-known stability that characterize this strain reflect the noble genetic line to which it belongs (Skunk #1, Northern Lights and Haze) . By growing Critical Jack, you have the possibility of obtaining very productive plants , capable of giving you a generous harvest whose level of quality « premium » it is well above many current varieties.

Efficiency _

Critical Jack shows off one of its greatest qualities right here, offering the guarantee to both the passionate grower and the legal grower of obtaining very abundant harvests of large, compact and heavy flowers , whose homogeneity and qualitative aspect will surprise even the most demanding! Indoors , grown Critical Jack cannabis seeds, you will get a yield of up to 625g/m2 . Outdoors , at least 1200g /plant . Reliability and quality are always our priority ...

Odors and flavours

Critical Jack subtly blends the contrasting and complementary aromatic tendencies of Jack Herer and C ritical +. This is why we find in it the fine and subtle complexity of the Haze line , with notes of cedar, incense, pine and spices that blend delicately with the fresh intensity of the lemon aroma generously contributed by Critical +. An explosive and long-lasting fusion of flavors...

Effects _

Critical Jack will give you pleasant moments that will fill you with emotions, especially thanks to the Sativa influence of Jack Herer , which provides a powerful and long-lasting energizing effect . You will definitely hear a high slightly psychedelic or , typical of the Haze line. Critical Jack is a cannabis seed that produces more mental than physical sensations (60% Sativa )

Growing Tips

Critical Jack is a cannabis variety whose vegetative growth period indoors should be limited to a maximum of 3 weeks , because it tends to elongate strongly during the "stretch" ( which lasts from 10 to 15 days when the photoperiod is changed to 12/12 hours for flowering). It is strongly recommended to use methods such as SOG (Sea Of Green) or SCROG (Screen Of Green) , in order to optimize indoor production . Outdoors, Critical Jack represents a valid opportunity to obtain large yields in different climatic circumstances, thanks to its resistance capacity to possible attacks by parasites and fungi.


40% Indica/ 60% Sativa


Critical + x   Jack Herer

Culture Indoor & Outdoor
Indoor flowering 60 days
Indoor production 620gr/m2
Outdoor harvest End of September Mid-October
Outdoor production 1200gr/plant
Outdoor height 3 m
THC|CBD 15/20%| 0.01/0.2

All information contained is for informational and educational purposes only. We urge all users not to make any practical use of this information in connection with cannabis seeds. In fact, let us remember that:

In Italy the cultivation of cannabis seeds is prohibited (Art. 28 and 73 of Presidential Decree 309/90) if you do not have a specific authorization (Art. 17 Presidential Decree 309/90)

Therefore, cannabis seeds may be used exclusively for collecting purposes and for genetic preservation and are marketed with the reservation that they are not used by third parties in conflict with the law. Cannabis seeds are excluded from Presidential Decree 309/90, which means that they are not to be considered narcotic substances (L. 412 of 1974, Art. 1, Paragraph 1, Letter B; New York single convention on narcotics of 1961 and table 1 Ministry of Health decree 11 April 2006).

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