Double Diamond by Yardie Seeds

Double Diamond strain photo
Type indica/sativaFlower ±53 daysTHC 20%Cross Jamaican Sensi × White Widow

Double Diamond, from breeder Yardie Seeds, is an indica-leaning strain descended from Jamaican Sensi × White Widow. Indoors it typically finishes flowering in around 53 days after the flip to 12/12. Reported THC is 20%. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Double Diamond grows against.

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BreederYardie Seeds
Typeindica/sativa
Flowering time±53 days
THC20%
EnvironmentOutdoors
LineageJamaican Sensi × White Widow

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🧬 Explore the family: Jamaican Sensi · White Widow

Ancestry Pedigree

Jamaican Sensi
Yardie Seeds
Jamaica Hybrid
Original Strains
White Widow
Unknown or Legendary
White Widow
De Sjamaan
Brazil Sativa
Original Strains
India Indica
Original Strains

Growing Double Diamond: 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 Jamaican Sensi or White Widow 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.

Double Diamond FAQ

How long does Double Diamond take to flower?

Double Diamond typically flowers in around 53 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Double Diamond an indica or a sativa?

Double Diamond is listed as indica/sativa.

What are the parents of Double Diamond?

Double Diamond was bred from Jamaican Sensi × White Widow by Yardie Seeds.

How strong is Double Diamond?

Reported THC for Double Diamond is 20%. Actual potency depends heavily on environment, harvest ripeness, and cure quality.

What environment does Double Diamond 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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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.