Ultraviolet Haze by TreeTown Seeds
Ultraviolet Haze lands on the indica-leaning side of the spectrum, TreeTown Seeds's take on the SR-71 PK × The original Haze line. 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 Ultraviolet Haze grows against.
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Similar strains
| Breeder | TreeTown Seeds |
|---|---|
| Type | indica/sativa |
| Flowering time | ±70 days |
| Environment | Outdoors, Greenhouse |
| Lineage | SR-71 PK × The original Haze |
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🧬 Explore the family: SR-71 PK · The original Haze
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Growing Ultraviolet Haze: 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 SR-71 PK or The original Haze 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.
Ultraviolet Haze FAQ
How long does Ultraviolet Haze take to flower?
Ultraviolet Haze 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 Ultraviolet Haze an indica or a sativa?
Ultraviolet Haze is listed as indica/sativa.
What are the parents of Ultraviolet Haze?
Ultraviolet Haze was bred from SR-71 PK × The original Haze by TreeTown Seeds.
What environment does Ultraviolet Haze 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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