Jack Herriar by Power Seeds
Jack Herriar is an indica-leaning cannabis strain from Power Seeds, bred by crossing Jack Herer. Indoors it typically finishes flowering in around 63 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Jack Herriar grows against.
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Similar strains
| Breeder | Power Seeds |
|---|---|
| Type | 50% indica, 50% sativa |
| Flowering time | ±63 days |
| Environment | Outdoors |
| Lineage | Jack Herer |
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Growing Jack Herriar: what to expect
As an indica-leaning plant, expect a modest stretch after the flip (roughly 50–100%) and dense bud structure — which makes late-flower humidity discipline the main risk: keep RH in the 40s once buds fatten to stay ahead of mold. Growers familiar with 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.
Jack Herriar FAQ
How long does Jack Herriar take to flower?
Jack Herriar typically flowers in around 63 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Jack Herriar an indica or a sativa?
Jack Herriar is listed as 50% indica, 50% sativa.
What are the parents of Jack Herriar?
Jack Herriar was bred from Jack Herer by Power Seeds.
What environment does Jack Herriar 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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