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Blackjack is one of the most renowned cannabis strains from the seed bank, Nirvana. This super hybrid is a unique blend of two different lineage champions, culminating in an exceptional plant.

Seeds per pack

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Type and Genetics

These feminized Blackjack seeds are the result of cross-breeding the strains of Black Domino (developed in Seattle) and Jock Horror, from none other than the seed bank Nirvana Seeds.


Black Jack is a medium height plant with abundant branches. It produces large trichomes, the heads of which can be seen with the naked eye.

Aroma and Taste

The taste of this strain is strong and fresh, with a blend of earthy and minty tones.


It induces a relaxing feeling of happiness when consumed in small doses. When smoked in large doses, it results in euphoria.


The average yield sits at between 400 and 500 grams per square meter in indoor cultivation with the Sea of Green technique.

Indoor Flowering

This strain should be fully matured after 10 weeks of flowering.

Outdoor Flowering

In the Northern Hemisphere, it can be harvested by mid-October, and in the Southern Hemisphere, by mid-April.

La Huerta's Opinion

On our website, you can also find a nearly identical version of this strain developed by Sweet Seeds, their famous Black Jack.

Data sheet

Types of seeds
Feminized seeds
Indica sativa percentage
100% Sativa
Flowering time
Long Flowering (+65 days)
Strong effect
Citric flavour
Earthy flavour
Incensed/Haze flavour
Mint flavor
Sweet/fruity flavour
Haze strain
Other characteristics
Ideal for extracts

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