Sir Jack Auto by Exotic Seed
1 other breeder's version of Sir Jack Auto — compare flowering times side by side →
Growers reach for Sir Jack Auto as an autoflowering option, a cross of Skunk × Sir Jack out of Exotic Seed. Indoors it typically finishes flowering in around 84 days from sprout. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Sir Jack Auto grows against.
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Similar strains
| Breeder | Exotic Seed |
|---|---|
| Type | ruderalis/indica/sativa |
| Flowering time | ±84 days |
| Environment | Outdoors |
| Lineage | Skunk × Sir Jack |
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Autoflower note: runs on age, not light schedule — see the week-by-week autoflower schedule.
🧬 Explore the family: Skunk · Sir Jack
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Growing Sir Jack Auto: what to expect
Because Sir 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 Skunk or Sir Jack 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.
Sir Jack Auto FAQ
How long does Sir Jack Auto take to flower?
Sir Jack Auto typically flowers in around 84 days from sprout (autoflower — no light-schedule flip needed). Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Sir Jack Auto an indica or a sativa?
Sir Jack Auto is listed as ruderalis/indica/sativa (autoflowering).
What are the parents of Sir Jack Auto?
Sir Jack Auto was bred from Skunk × Sir Jack by Exotic Seed.
What environment does Sir 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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