Jackmatic by Black Skull Seeds
Jackmatic, from breeder Black Skull Seeds, is an indica-leaning strain descended from SkullRyder × Jack Herer. Indoors it typically finishes flowering in around 70 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Jackmatic grows against.
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| Breeder | Black Skull Seeds |
|---|---|
| Type | ruderalis/indica/sativa |
| Flowering time | ±70 days |
| Environment | Indoors |
| Lineage | SkullRyder × Jack Herer |
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Growing Jackmatic: 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 SkullRyder 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.
Jackmatic FAQ
How long does Jackmatic take to flower?
Jackmatic typically flowers in around 70 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Jackmatic an indica or a sativa?
Jackmatic is listed as ruderalis/indica/sativa.
What are the parents of Jackmatic?
Jackmatic was bred from SkullRyder × Jack Herer by Black Skull Seeds.
What environment does Jackmatic 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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