Cosmic Haze by East Coast Seeds
A indica-leaning cross of Haze × C4 IBL, Cosmic Haze — released by East Coast Seeds — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 55 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Cosmic Haze grows against.
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Similar strains
| Breeder | East Coast Seeds |
|---|---|
| Type | indica/sativa |
| Flowering time | ±55 days |
| Environment | Outdoors |
| Lineage | Haze × C4 IBL |
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🧬 Explore the family: Haze · C4 IBL
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Growing Cosmic 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 Haze or C4 IBL 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.
Cosmic Haze FAQ
How long does Cosmic Haze take to flower?
Cosmic Haze typically flowers in around 55 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Cosmic Haze an indica or a sativa?
Cosmic Haze is listed as indica/sativa.
What are the parents of Cosmic Haze?
Cosmic Haze was bred from Haze × C4 IBL by East Coast Seeds.
What environment does Cosmic 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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