Black Jack Auto (Sweet Seeds)

Internet Rating

81 / 100
A sativa dominant auto with high levels of THC and an active happy high. The flavor and effect are as good as in the original Black Jack. One of the strongest purple strains.

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5.0/5 rating 1 vote
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A mostly sativa auto
THC: 19% CBD: 1,1%


  • Seed To Harvest: 62-87 days
  • Yield: 1-1.5oz per plant
  • Height: 1.5'-3.5'
  • Outdoor

  • Seed To Harvest: 97 days
  • Yield: From 1oz per plant
  • Height: 2.5'-4'
  • Seed Type: Feminized Only

    A vigorous, fast growing plant that produces beautiful purple buds in 9-10 weeks from seeds. It shows sex rather late (after 4 weeks) but then the buds start filling up nicely, especially in the last 10 days. A medium-yielder, it doesn't have many branches - one big central cola and 3-4 side shoots. Black Jack Auto is a heavy feeder and is suitable for the novice grower. The light cycle should be 24/0 in veg and 18/6 in flower.


    Strong and long-lasting, it is happy, giggly, social, good for walks and outdoor activities but inexperienced smokers can get couch-locked. Helps with pain, anxiety, depression and movement disorders.


    Very intense. Sweetness, incense, flowers and citrus. The smell and taste are as good as those of the original Black Jack and get only better if stored for a long time.


    Autoflowering new version of our Black Jack. Result of crossing our S.A.D. Auto with our Jack Herer. Automatic superior quality, dense buds and copious resin production, intense aroma and sweet incense, flowering quick, strong and great hybrid vigor effect. The r-evolution of autoflowering reached the end of flowering these plants reach the same resinous and desirable than non-sisters autoflowering.

    100% autoflowering

    THC: 19% CBD: 1.1% CBN: 0.3%
    Indoor Yield: 400-550gr/m2
    Outdoor Yield: 40-250gr/planta
    Flowering indoors: 6 weeks
    Harvest Indoors/Outdoors: 9 weeks from germination
    Height: 40-110 cm

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