Jamaican Berry by Flash Seeds

Jamaican Berry strain photo
Type ruderalis/sativaFlower ±98 daysCross Jamaica Sativa × Blueberry

A sativa-leaning cross of Jamaica Sativa × Blueberry, Jamaican Berry — released by Flash Seeds — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 98 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Jamaican Berry grows against.

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BreederFlash Seeds
Typeruderalis/sativa
Flowering time±98 days
EnvironmentOutdoors
LineageJamaica Sativa × Blueberry

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🧬 Explore the family: Jamaica Sativa · Blueberry

Ancestry Pedigree

Jamaica Sativa
Original Strains
Blueberry
DJ Short
Blueberry Line
Unknown or Legendary
Temple Flo
DJ Short
Floral Line
Unknown or Legendary
Purple Thai
Unknown or Legendary
Highland Oxacan Gold
Unknown or Legendary
Mexico Sativa
Original Strains
Chocolate Thai
Unknown or Legendary
Thailand Sativa
Original Strains
Afghani
Unknown or Legendary
Afghanistan Indica
Original Strains
HTAF
Unknown or Legendary
Thailand Sativa
Original Strains
Afghani
Unknown or Legendary
Stitch 02
Flash Seeds
Ruderalis
Original Strains
Unknown Strain
Original Strains

Growing Jamaican Berry: 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 Sativa or Blueberry 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 Berry FAQ

How long does Jamaican Berry take to flower?

Jamaican Berry typically flowers in around 98 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Jamaican Berry an indica or a sativa?

Jamaican Berry is listed as ruderalis/sativa.

What are the parents of Jamaican Berry?

Jamaican Berry was bred from Jamaica Sativa × Blueberry by Flash Seeds.

What environment does Jamaican Berry 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 Berry? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.

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Published by Cultivar (logmygrow.com), a structured grow journal. These reference bands are the same ones the app grades real grows against. Free to cite with a link. Some outbound product links are affiliate links — see disclosures.