Critical Jack is a 60% sativa cannabis strain that was bred by crossing Critical + with Jack Herer. It is a highly productive strain with high levels of THC.
Critical Jack is a cannabis hybrid of the highest quality. It is easy to grow, quite fast-flowering for a strain of this quality and can grow quite large outdoors. It is a prodigious producer that outstrips even Critical + for yields. Indoors a SCROG system is perfect as long as the veg. period is kept quite short otherwise its propensity to stretch could cause some issues. Here it can provide the grower with harvests of 625 gr/m2 in 60 days of flowering. Outdoors, where it can reach 3 meters tall, it needs plenty of sunshine and warmth otherwise a greenhouse environment is recommended to fulfil its potential which amounts to up to 1200 gr/plant with harvest being late September / mid-October in the northern hemisphere. The overall appearance of Critical Jack can look a bit shabby as the light green leaves hang rather limply but this is nothing to worry about as you will see as soon as the explosion of flowers will show.
In terms of aroma and flavour you will find citrus fruit, incense, exotic wood and spices with some phenos emphasising the lemon/woody character. THC production is very high at 21% giving a very long-lasting, cerebral high.
Critical Jack has won several awards including: 1st prize in the “Outdoor Sativa” category at the UCLA cup (Unión Cannábica Latinoamericana); 1st prize in the "Best Shatter" category of the 2015 San Bernardino Hempcon Cup, USA.
|Genetics||Critical + x Jack Herer|
|Variety||Indica / Sativa|
|Yield||Indoors: 625 gr/m2; Outdoors: 1200 gr/plant|
|Plant Height||Up to 3 meters outdoors|
|Grows||Greenhouse, Indoors, Outdoors|
|Flowering Time||55 - 65 days|
|Harvest Month||End of September to Mid October outdoors|
|Taste / Flavour||Citrus, Spicy / Herbal, Woody|
|Awards||1st prize in the “Outdoor Sativa” category at the UCLA cup (Unión Cannábica Latinoamericana); 1st prize in the "Best Shatter" category of the 2015 San Bernardino Hempcon Cup, USA.|
About Dinafem Seeds
In 2005, after accumulating years of experience growing cannabis in all of its varieties, Dinafem Seeds decided to cultivate their own strains.
Interestingly, Dinafem Seeds are the leading pioneers in cannabis seed preservation. They are internationally recognised for their part in revolutionising seeds storage. When they first opened as a seed bank, Dinafem Seeds were finding that many of the seeds that they were sending or receiving were damaged due to the sub-standard packaging. Plastic containers were not protecting the seeds from humidity and light, while paper envelopes were simply not stable enough to protect the valuable contents.
Dinafem Seeds now use packaging that prevents seeds being irreversibly damaged. The seeds are first placed in a clear, plastic vial, similar to ones used in a standard laboratory. This vial is then placed inside a strong metal container ensuring absolute safety when products are being shipped across the world.
Dinafem Seeds have been selling the best selection of sativa and indica cannabis seeds worldwide from their own and from other seed banks for over ten years now. Since their origins as novice growers, they have researched the genetics of many plants to produce their own seeds, all of which are appreciated worldwide.
By the end of the 21st century, Dinafem Seeds was not only recognised for their superior preservation techniques, but also for the high quality of their feminised strains. Their Moby Dick CBD is immensely popular thanks to its fantastic medicinal properties and long-lasting cerebral effect. While their fantastic Blue Kush strain is a customer favourite for its potency and its intense flavour and aroma.
Here at Seedsman, we stock more Dinafem strains than most other seedbanks, which is why it continues to be an immensely popular breeder on our site. Try for yourself, buy Dinafem Seeds from Seedsman now.