Black Abyss by GK Genetics
Black Abyss is an indica-leaning cannabis strain from GK Genetics, bred by crossing Black Jack × 9lb Hammer. Indoors it typically finishes flowering in around 65 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Black Abyss grows against.
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Similar strains
| Breeder | GK Genetics |
|---|---|
| Type | indica/sativa |
| Flowering time | ±65 days |
| Environment | Outdoors |
| Lineage | Black Jack × 9lb Hammer |
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Growing Black Abyss: 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 Black Jack or 9lb Hammer 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 Abyss FAQ
How long does Black Abyss take to flower?
Black Abyss typically flowers in around 65 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Black Abyss an indica or a sativa?
Black Abyss is listed as indica/sativa.
What are the parents of Black Abyss?
Black Abyss was bred from Black Jack × 9lb Hammer by GK Genetics.
What environment does Black Abyss 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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