Romulan Grapefruit by Next Generation
A indica-leaning cross of Romulan × Grapefruit, Romulan Grapefruit — released by Next Generation — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 50 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Romulan Grapefruit grows against.
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Similar strains
| Breeder | Next Generation |
|---|---|
| Type | mostly indica |
| Flowering time | ±50 days |
| Environment | Outdoors |
| Lineage | Romulan × Grapefruit |
| Descendants | Grape OG, Grape Kush, Romulan Haze |
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🧬 Explore the family: Romulan · Grapefruit · Grape OG · Grape Kush · Romulan Haze
Ancestry Pedigree
Next Generation Seed Company
Unknown or Legendary
Original Strains
Unknown or Legendary
Clone Only Strains
Original Strains
Growing Romulan Grapefruit: 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 Romulan 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.
Romulan Grapefruit FAQ
How long does Romulan Grapefruit take to flower?
Romulan Grapefruit typically flowers in around 50 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Romulan Grapefruit an indica or a sativa?
Romulan Grapefruit is listed as mostly indica.
What are the parents of Romulan Grapefruit?
Romulan Grapefruit was bred from Romulan × Grapefruit by Next Generation.
What environment does Romulan Grapefruit 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 Romulan Grapefruit? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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