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Black Jack Auto feminized seeds


Black Jack Auto from Sweet Seeds is a fast-flowering autoflowering feminized strain delivering impressive yields of 550 g/m² of dense buds brimming with 19% THC. Adapted to any growing environment, this automatic variety is suitable even for the most inexperienced of growers. What is more? It brings a distinctive sweet aroma with earthy undertones, is perfect jack up your mood, feel happy and relaxed.

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Sweet Seeds
Outdoor Indoor
66,87% Sativa / 30% Indica / 3,12% Ruderalis
THC 19 % CBD 1.1 %
All characteristics

Black Jack Auto: Heavy Yields in No Time

Black Jack Auto is an autoflowering strain of the third generation, a new version of Sweet Seeds’ Black Jack. This beautiful plant was created by combining a second-generation Sweet Afgani Delicious and Jack Herer. The strain has a considerate amount of Sativa (66,9%), a bit of Indica (30%) and Ruderalis (3,1%), which makes it a fast-flowering and medium-sized variety ideal for indoor and outdoor cultivation.  

Black Jack Auto takes just 9 weeks from germination to flower completely and brings vigorous resin-packed buds with calyxes shaped like grapes. It can reach up to 110cm of height whether cultivated indoors or outdoors. Indoor cultivation seems more convenient as the plants develops a bushy Indica structure with medium lateral brunches. This strain adapts itself at any room temperature and thrives indoors producing up to 550g/m2. The strain can grow in any conditions and is very forgiving. These features make it perfect for inexperienced growers. Outdoors, Black Jack Auto prefers consistent sunlight and the temperature regime of 70-80° F. In the open air, this strain can produce an outstanding amount of yield, up to 250g/ plant.

A Crack-Down on Depression and Anxiety

Black Jack Auto offers you a warm and delicate feeling, taking over the body and mind. In the beginning, it strikes quickly and leaves a sense of heaviness in the head. Then it transforms into an uplifting high that bring relief from anxiety and depression. The released aroma is an unforgettable combination of sweet notes and citrus with earthy undertones.


  • Brand Sweet Seeds
  • Sex Feminized
  • Flowering type Autoflowering
  • Suitable for Outdoor
  • Suitable for Indoor
  • Effect Creative energy fountain
  • Genetics S.A.D. Auto x Jack Herer Auto
  • Height 40 - 110 cm
  • Yield 400 - 550 g/m² indoors
    40 - 250 g/plant outdoors
  • Flowering indoors 42 days
  • From seed to harvest 63 days
  • Genotype 66,87% Sativa / 30% Indica / 3,12% Ruderalis
  • THC 19 %
  • CBD 1.1 %
  • CBN 0.3 %
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