Thunderstruck by Sumo Seeds
Thunderstruck, from breeder Sumo Seeds, is an indica-leaning strain descended from Blue Thunder × Old Afghani. Indoors it typically finishes flowering in around 53 days after the flip to 12/12. Reported THC is 24%. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Thunderstruck grows against.
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Similar strains
| Breeder | Sumo Seeds |
|---|---|
| Type | 85% Indica 15% sativa |
| Flowering time | ±53 days |
| THC | 24% |
| Environment | Outdoors |
| Lineage | Blue Thunder × Old Afghani |
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Sagarmatha Seeds
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Sagarmatha Seeds
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Original Strains
Sumo Seeds
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Growing Thunderstruck: 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 Blue Thunder or Old Afghani 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.
Thunderstruck FAQ
How long does Thunderstruck take to flower?
Thunderstruck 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 Thunderstruck an indica or a sativa?
Thunderstruck is listed as 85% Indica 15% sativa.
What are the parents of Thunderstruck?
Thunderstruck was bred from Blue Thunder × Old Afghani by Sumo Seeds.
How strong is Thunderstruck?
Reported THC for Thunderstruck is 24%. Actual potency depends heavily on environment, harvest ripeness, and cure quality.
What environment does Thunderstruck 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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