Blackkush by Island Seeds
Bred by Island Seeds from Blackwater × Double Dutch, Blackkush is an indica-leaning cannabis variety. 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 Blackkush grows against.
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| Breeder | Island Seeds |
|---|---|
| Type | mostly indica |
| Flowering time | ±65 days |
| Environment | Outdoors, Greenhouse |
| Lineage | Blackwater × Double Dutch |
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🧬 Explore the family: Blackwater · Double Dutch
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Growing Blackkush: 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 Blackwater or Double Dutch 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.
Blackkush FAQ
How long does Blackkush take to flower?
Blackkush 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 Blackkush an indica or a sativa?
Blackkush is listed as mostly indica.
What are the parents of Blackkush?
Blackkush was bred from Blackwater × Double Dutch by Island Seeds.
What environment does Blackkush 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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