Ultrashack by FlowerPower
Growers reach for Ultrashack as an indica-leaning option, a cross of Kultranusta × Kultranusta out of FlowerPower. 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 Ultrashack grows against.
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Similar strains
| Breeder | FlowerPower |
|---|---|
| Type | indica/sativa |
| Flowering time | ±70 days |
| Environment | Outdoors, Greenhouse |
| Lineage | Kultranusta × Kultranusta |
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Growing Ultrashack: 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 Kultranusta or Kultranusta 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.
Ultrashack FAQ
How long does Ultrashack take to flower?
Ultrashack 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 Ultrashack an indica or a sativa?
Ultrashack is listed as indica/sativa.
What are the parents of Ultrashack?
Ultrashack was bred from Kultranusta × Kultranusta by FlowerPower.
What environment does Ultrashack 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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