Blackout by Yardie Seeds

Type indica/sativaFlower ±56 daysTHC 16%Cross Jamaica Sativa × Northern Lights

Bred by Yardie Seeds from Jamaica Sativa × Northern Lights, Blackout is an indica-leaning cannabis variety. Indoors it typically finishes flowering in around 56 days after the flip to 12/12. Reported THC is 16%. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Blackout grows against.

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BreederYardie Seeds
Typeindica/sativa
Flowering time±56 days
THC16%
EnvironmentOutdoors
LineageJamaica Sativa × Northern Lights
DescendantsBlackout Autoflowering

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🧬 Explore the family: Jamaica Sativa · Northern Lights · Blackout Autoflowering

Ancestry Pedigree

Jamaica Sativa
Original Strains
Northern Lights
Unknown or Legendary
Purest Indica
Clone Only Strains
Afghani
Unknown or Legendary
Afghanistan Indica
Original Strains

Growing Blackout: 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 Jamaica Sativa or Northern Lights 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.

Blackout FAQ

How long does Blackout take to flower?

Blackout typically flowers in around 56 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Blackout an indica or a sativa?

Blackout is listed as indica/sativa.

What are the parents of Blackout?

Blackout was bred from Jamaica Sativa × Northern Lights by Yardie Seeds.

How strong is Blackout?

Reported THC for Blackout is 16%. Actual potency depends heavily on environment, harvest ripeness, and cure quality.

What environment does Blackout 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.