Jack by BC Seed Co.
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Jack is a sativa-leaning cannabis strain from BC Seed Co., bred by crossing Haze × Skunk Nr1. Indoors it typically finishes flowering in around 60 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Jack grows against.
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Similar strains
| Breeder | BC Seed Co. |
|---|---|
| Type | mostly sativa |
| Flowering time | ±60 days |
| Environment | Indoors |
| Lineage | Haze × Skunk Nr1 |
| Descendants | Jack 33 |
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🧬 Explore the family: Haze · Skunk Nr1 · Jack 33
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Growing Jack: what to expect
As a sativa-leaning plant, plan for a big stretch after the flip (often 100–200%) — flip earlier than feels natural and keep training options ready. Sativa-leaning plants also generally prefer a lighter feed than heavy indicas. Growers familiar with Haze or Skunk Nr1 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.
Jack FAQ
How long does Jack take to flower?
Jack typically flowers in around 60 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Jack an indica or a sativa?
Jack is listed as mostly sativa.
What are the parents of Jack?
Jack was bred from Haze × Skunk Nr1 by BC Seed Co..
What environment does Jack 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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