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The feminized autoflowering cannabis strain Black Jack Auto by Sweet Seeds allows for several discreet harvests per year. A strain with the characteristics of the original Black Jack strain, in autoflowering format. It has a sweet incensed flavor with citric touches, and a happy and euphoric effect with a very pleasant relaxing physical end.

Seeds per pack

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Type and genetics

The cannabis strain Black Jack Auto by Sweet Seeds is the product of a cross between an elite clone of Jack Herer and a second generation Sweet Afghani Delicious S.A.D. Auto. The aim of this hybrid was to obtain an autoflowering strain with the same characteristics as the original Black Jack, but which also allowed several harvests per year in a discreet way.


This strain presents vigorous growth during the three or four weeks of vegetative stage before starting to flower. Remember that autoflowering plants should be watered sparingly but frequently during their first stage to achieve adequate growth.

Aroma and taste

Similar to the original strain, Black Jack Auto produces a citrus and earthy aroma accompanied by an incensed and sweet taste with spicy hints.


The effect produced by Black Jack Auto begins euphoric and cheerful due to its sativa dominance, and over time becomes a very pleasant physical-relaxing effect. This strain is suitable for recreational and medicinal use , being ideal to relax after the day, to combat stress or for night use.


This auto strain is capable of producing a large central bud that ends up surrounded by branches full of resinous buds. In indoor crops can reach up to 400 - 550 g perm2 and outdoors can be harvested 40 - 250 g per plant grown in soil or in a large pot.


In indoor and outdoor crops, Black Jack Auto completes flowering in 9 weeks from germination. This strain finishes flowering with a height of40-110 cm, being ideal for growers with little space or who need more discretion in balconies or gardens.

Sativa/Indica Percentage

66,9% sativa / 30% indica / 3.1% ruderalis


THC: 19%

CBD: 1.1%.

CBN: 0.3%.

La Huerta's opinion

Black Jack Auto by Sweet Seeds is an easy to grow cannabis plant. It's recommended for Black Jack lovers who want to obtain several discreet harvests per year.

Data sheet

Types of seeds
Autoflowering seeds
Indica sativa percentage
More indica (relaxing)
Flowering time
Fast Flowering (45-55 days)
Medium effect
Citric flavour
Earthy flavour
Incensed/Haze flavour
Sweet/fruity flavour
Haze strain
Other characteristics
Easy to grow

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