Grape Ultra by 303 Seeds
Grape Ultra is a sativa-leaning cannabis strain from 303 Seeds, bred by crossing Grape Funk × SSSDH. Indoors it typically finishes flowering in around 70 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Grape Ultra grows against.
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Similar strains
| Breeder | 303 Seeds |
|---|---|
| Type | mostly sativa |
| Flowering time | ±70 days |
| Environment | Outdoors |
| Lineage | Grape Funk × SSSDH |
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🧬 Explore the family: Grape Funk · SSSDH
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Growing Grape Ultra: 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 Grape Funk or SSSDH 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.
Grape Ultra FAQ
How long does Grape Ultra take to flower?
Grape Ultra typically flowers in around 70 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Grape Ultra an indica or a sativa?
Grape Ultra is listed as mostly sativa.
What are the parents of Grape Ultra?
Grape Ultra was bred from Grape Funk × SSSDH by 303 Seeds.
What environment does Grape Ultra 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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