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Critical Jack


  • Sex Feminised
  • Genotype 40% Indica / 60% Sativa
  • Cross Critical+ x Jack Herer
  • Suitable for Indoors and outdoors
  • Indoor flowering 60 days
  • Indoor yield 625 g/m2
  • Outdoor harvest time Late September / Mid-October
  • Outdoor yield 1200 g/plant
  • Outdoor height 3 m
  • THC High
  • CBD Medium
SKU: DNF120 Categories: , ,


Critical Jack is a feminised cannabis seed deriving from the cross of two cannabis legends: Critical + and Jack Herer. At Dinafem Seeds, we decided to work on these two genetics because we thought that crossing them would lead to a really good thing, and that’s what happened. We’ve masterfully mixed the traits of both genetics until a strain that would reveal the three most important families she came from was created (Skunk #1, Northern Lights and Haze). In a nutshell, a high-class hybrid that deserves a very special place in any garden; an amazing reputation earned for her yield, potency, taste as well as for the incredible extractions that can be made out of her super-tasty trichomes.

1st prize in the ‘Outdoor Sativa’ category at the 2016 UCLA cup (Unión Cannábica Latinoamericana).
1st prize in the “Best Shatter” category of the 2015 San Bernardino Hempcon Cup, USA.

Additional information

Weight 0.005 kg
Dimensions 11 × 10 × 1 cm

1, 3, 5, 10


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Please note all our images and descriptions have come direct from customers and breeders who operate in a legal states, much different to that within the United Kingdom. Please be aware, you should NEVER try to cultivate cannabis seeds within ANY jurisdiction where such cultivation is illegal. Our seeds are sold purely for the preservation of genetic material (if and when the laws change) souvenirs or high quality bird feed and should be treated as a curio or novelty item and should NEVER be germinated. PLEASE DO NOT BREAK THE LAW IN THE COUNRTY/STATE YOU RESIDE IN REALGORILLASEEDS WILL NOT BE HELD RESPONSIBLE FOR THE ACT OF THIRD PARTIES !