Sour Kush by Mystic Seeds
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Sour Kush is an indica-leaning cannabis strain from Mystic Seeds, bred by crossing Sour Diesel IBL × Mk-Ultra. Indoors it typically finishes flowering in around 67 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Sour Kush grows against.
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| Breeder | Mystic Seeds |
|---|---|
| Type | 70% Indica - 30% Sativa |
| Flowering time | ±67 days |
| Environment | Outdoors |
| Lineage | Sour Diesel IBL × Mk-Ultra |
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Growing Sour Kush: 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 Sour Diesel IBL or Mk-Ultra 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.
Sour Kush FAQ
How long does Sour Kush take to flower?
Sour Kush typically flowers in around 67 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Sour Kush an indica or a sativa?
Sour Kush is listed as 70% Indica - 30% Sativa.
What are the parents of Sour Kush?
Sour Kush was bred from Sour Diesel IBL × Mk-Ultra by Mystic Seeds.
What environment does Sour Kush 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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