Genetics
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Indica/Sativa hybrid retail shopping label — not genetics

BlackJack Strain

BlackJack is an indica/sativa hybrid strain (9lb Hammer × Black Domino). 73-day flowering; 2 breeder releases.

Median THC
Flowering
70–77 days
Breeder releases
2
Avg rating
8.0 / 10

Indica / Sativa — retail shopping guide

Indica 50%Sativa 50%

Indica, sativa and hybrid are a retail shopping convention — not a reliable guide to genetics or effects. When researchers analysed 89,923 commercial samples across six states, these labels did not predict a plant’s terpene or cannabinoid profile, and a genome-wide study found sativa- and indica-labelled plants to be genetically indistinct (PLOS ONE 2022; Nature Plants 2021). The labels are so fluid that AK-47, a hybrid, won “Best Sativa” at the 1999 Cannabis Cup and “Best Indica” four years later. For an accurate, genetics-true picture, see the chemotype above.

Genetics & Lineage

Parents
This strainBlackJack
Descendants (8)

Breeder releases (2)

BreederTHCFloweringSeedsRating
Sativa Seedbank77dreg. and fem.8.0/10
Nirvana Seeds70dfeminized

About BlackJack

Blackjack’s mother is a clone sent to Holland from the Seattle area called Black Domino and the father is Nirvana’s Jock Horror. The Buds produced by Blackjack are hard with huge grape like calyxes covered with THC. The smoke is heavy and full of flavor terpenoids. The high is very long lasting. Blackjack is highly regarded in the Medical scene. Height: medium Effect: All-round effect THC-Content: strong; 15 bis 24% Flowering weeks: 11 or fewer weeks Yield (S.O.G.): 450 to 550g Difficulty: moderate

Frequently asked questions

What are the genetics of BlackJack?
BlackJack comes from 9lb Hammer × Black Domino.
Is BlackJack indica or sativa?
BlackJack is classified as indica/sativa hybrid.
How long does BlackJack take to flower?
BlackJack flowers in about 70–77 days.
Is BlackJack available as feminized or autoflowering seeds?
BlackJack is offered as: feminized, reg. and fem..