Speed Haze by Black Skull Seeds
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A sativa-leaning cross of Super Silver Haze × Jack Herer, Speed Haze — released by Black Skull Seeds — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 63 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Speed Haze grows against.
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Similar strains
| Breeder | Black Skull Seeds |
|---|---|
| Type | mostly sativa |
| Flowering time | ±63 days |
| Environment | Outdoors |
| Lineage | Super Silver Haze × Jack Herer |
| Descendants | Auto Speed Haze |
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🧬 Explore the family: Super Silver Haze · Jack Herer · Auto Speed Haze
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Growing Speed Haze: what to expect
As a sativa-leaning plant, plan for a big stretch after the flip (often 100–200%) — flip earlier than feels natural and keep training options ready. Sativa-leaning plants also generally prefer a lighter feed than heavy indicas. Growers familiar with Super Silver Haze or Jack Herer 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.
Speed Haze FAQ
How long does Speed Haze take to flower?
Speed Haze typically flowers in around 63 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Speed Haze an indica or a sativa?
Speed Haze is listed as mostly sativa.
What are the parents of Speed Haze?
Speed Haze was bred from Super Silver Haze × Jack Herer by Black Skull Seeds.
What environment does Speed 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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Facts compiled from public breeder listings. Growing Speed Haze? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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