Doctor Shiva by Flash Seeds

Doctor Shiva strain photo
Type ruderalis/sativaFlower ±110 daysCross Himalaya Sativa × AK47

Bred by Flash Seeds from Himalaya Sativa × AK47, Doctor Shiva is a sativa-leaning cannabis variety. Indoors it typically finishes flowering in around 110 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Doctor Shiva grows against.

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BreederFlash Seeds
Typeruderalis/sativa
Flowering time±110 days
EnvironmentOutdoors
LineageHimalaya Sativa × AK47

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🧬 Explore the family: Himalaya Sativa · AK47

Ancestry Pedigree

Himalaya Sativa
Original Strains
AK47
Serious Seeds
Colombia Sativa
Original Strains
Mexico Sativa
Original Strains
Thailand Sativa
Original Strains
Afghanistan Indica
Original Strains
Stitch 02
Flash Seeds
Ruderalis
Original Strains
Unknown Strain
Original Strains

Growing Doctor Shiva: 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 Himalaya Sativa or AK47 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.

Doctor Shiva FAQ

How long does Doctor Shiva take to flower?

Doctor Shiva typically flowers in around 110 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Doctor Shiva an indica or a sativa?

Doctor Shiva is listed as ruderalis/sativa.

What are the parents of Doctor Shiva?

Doctor Shiva was bred from Himalaya Sativa × AK47 by Flash Seeds.

What environment does Doctor Shiva 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 Doctor Shiva? 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.