Sour Grape by Lineage Genetics
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Sour Grape is an indica-leaning cannabis strain from Lineage Genetics, bred by crossing Headband × Grapefruit. Indoors it typically finishes flowering in around 53 days after the flip to 12/12. Reported THC is 20.8%. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Sour Grape grows against.
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Similar strains
| Breeder | Lineage Genetics |
|---|---|
| Type | 50% Indica, 50% Sativa |
| Flowering time | ±53 days |
| THC | 20.8% |
| Environment | Outdoors |
| Lineage | Headband × Grapefruit |
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🧬 Explore the family: Headband · Grapefruit
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Growing Sour Grape: 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 Headband or Grapefruit 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 Grape FAQ
How long does Sour Grape take to flower?
Sour Grape typically flowers in around 53 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Sour Grape an indica or a sativa?
Sour Grape is listed as 50% Indica, 50% Sativa.
What are the parents of Sour Grape?
Sour Grape was bred from Headband × Grapefruit by Lineage Genetics.
How strong is Sour Grape?
Reported THC for Sour Grape is 20.8%. Actual potency depends heavily on environment, harvest ripeness, and cure quality.
What environment does Sour Grape 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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