Jamaican Grape by Secret Valley
Growers reach for Jamaican Grape as a sativa-leaning option, a cross of Jamaica Mostly Sativa out of Secret Valley. Indoors it typically finishes flowering in around 63 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Jamaican Grape grows against.
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Similar strains
| Breeder | Secret Valley |
|---|---|
| Type | mostly sativa |
| Flowering time | ±63 days |
| Environment | Outdoors |
| Lineage | Jamaica Mostly Sativa |
| Descendants | Now&Later, Almond Joy, Almond Joy, Marley's Tribute |
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🧬 Explore the family: Jamaica Mostly Sativa · Now&Later · Almond Joy · Almond Joy · Marley's Tribute
Ancestry Pedigree
Original Strains
Growing Jamaican Grape: 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 Jamaica Mostly Sativa 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.
Jamaican Grape FAQ
How long does Jamaican Grape take to flower?
Jamaican Grape typically flowers in around 63 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Jamaican Grape an indica or a sativa?
Jamaican Grape is listed as mostly sativa.
What are the parents of Jamaican Grape?
Jamaican Grape was bred from Jamaica Mostly Sativa by Secret Valley.
What environment does Jamaican 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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Facts compiled from public breeder listings. Growing Jamaican Grape? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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