R18 by Fuzzy Genetics
Growers reach for R18 as an indica-leaning option, a cross of The OG Nr18 × Rollex OG Kush out of Fuzzy Genetics. Indoors it typically finishes flowering in around 65 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real R18 grows against.
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Similar strains
| Breeder | Fuzzy Genetics |
|---|---|
| Type | mostly indica |
| Flowering time | ±65 days |
| Environment | Outdoors, Greenhouse |
| Lineage | The OG Nr18 × Rollex OG Kush |
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🧬 Explore the family: Rollex OG Kush
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Growing R18: 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 The OG Nr18 or Rollex OG Kush 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.
R18 FAQ
How long does R18 take to flower?
R18 typically flowers in around 65 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is R18 an indica or a sativa?
R18 is listed as mostly indica.
What are the parents of R18?
R18 was bred from The OG Nr18 × Rollex OG Kush by Fuzzy Genetics.
What environment does R18 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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