Black Jack by The NugLab
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Growers reach for Black Jack as an indica-leaning option, a cross of Deep Chunk × Jack Herer out of The NugLab. 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 Black Jack grows against.
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Similar strains
| Breeder | The NugLab |
|---|---|
| Type | indica/sativa |
| Flowering time | ±60 days |
| Environment | Outdoors |
| Lineage | Deep Chunk × Jack Herer |
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🧬 Explore the family: Deep Chunk · Jack Herer
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Growing Black Jack: 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 Deep Chunk 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 FAQ
How long does Black Jack take to flower?
Black 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 Black Jack an indica or a sativa?
Black Jack is listed as indica/sativa.
What are the parents of Black Jack?
Black Jack was bred from Deep Chunk × Jack Herer by The NugLab.
What environment does Black 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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