Black Jack Auto by Sweet Seeds
Bred by Sweet Seeds from SAD Sweet Afgani Delicious Auto × Jack Herer, Black Jack Auto is an autoflowering cannabis variety. Indoors it typically finishes flowering in around 63 days from sprout. Reported THC is 19%. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Black Jack Auto grows against.
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Similar strains
| Breeder | Sweet Seeds |
|---|---|
| Type | ruderalis/indica/sativa |
| Flowering time | ±63 days |
| THC | 19% |
| Environment | Outdoors, Greenhouse |
| Lineage | SAD Sweet Afgani Delicious Auto × Jack Herer |
| Descendants | Jack in the Box |
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Autoflower note: runs on age, not light schedule — see the week-by-week autoflower schedule.
🧬 Explore the family: Jack Herer · Jack in the Box
Ancestry Pedigree
Sweet Seeds
Sweet Seeds
Sensi Seeds
Original Strains
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Original Strains
Sensi Seeds
The Seed Bank
Clone Only Strains
Unknown or Legendary
Unknown or Legendary
Original Strains
The Seed Bank
Clone Only Strains
Unknown or Legendary
The Seed Bank
Clone Only Strains
Original Strains
Sensi Seeds
The Seed Bank
Unknown or Legendary
Original Strains
Unknown or Legendary
Original Strains
Sensi Seeds
The Seed Bank
Unknown or Legendary
Original Strains
Original Strains
Original Strains
Sensi Seeds
The Seed Bank
Cultivators Choice
Original Strains
Original Strains
Growing Black Jack Auto: what to expect
Because Black Jack Auto is an autoflower it runs on age, not photoperiod: keep it under 18–20 hours of light from sprout to harvest, start in its final pot, and go easy on training after week 3 — autos never pause to recover. Growers familiar with SAD Sweet Afgani Delicious Auto or Jack Herer will recognize much of its behavior. Whatever the listing says, the cut in YOUR tent is the ground truth: log feedings, readings, and photos, and let the trends — not the label — drive decisions.
Black Jack Auto FAQ
How long does Black Jack Auto take to flower?
Black Jack Auto typically flowers in around 63 days from sprout (autoflower — no light-schedule flip needed). Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Black Jack Auto an indica or a sativa?
Black Jack Auto is listed as ruderalis/indica/sativa (autoflowering).
What are the parents of Black Jack Auto?
Black Jack Auto was bred from SAD Sweet Afgani Delicious Auto × Jack Herer by Sweet Seeds.
How strong is Black Jack Auto?
Reported THC for Black Jack Auto is 19%. Actual potency depends heavily on environment, harvest ripeness, and cure quality.
What environment does Black Jack Auto like?
Standard cannabis bands work well: VPD 0.8–1.1 kPa in veg and 1.0–1.4 kPa in flower, with humidity stepping down from 65–75% as a seedling to 40–50% in late flower. See the stage-by-stage table on this page.
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