Boom Shankar by Sonic Seeds

Boom Shankar strain photo
Type 50% Sativa, 50% IndicaFlower ±62 daysCross Critical Plus × Jack Herer

Boom Shankar lands on the indica-leaning side of the spectrum, Sonic Seeds's take on the Critical Plus × Jack Herer line. Indoors it typically finishes flowering in around 62 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Boom Shankar grows against.

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BreederSonic Seeds
Type50% Sativa, 50% Indica
Flowering time±62 days
EnvironmentOutdoors, Greenhouse
LineageCritical Plus × Jack Herer

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🧬 Explore the family: Critical Plus · Jack Herer

Ancestry Pedigree

Critical Plus
Dinafem
Critical Bilbo
Clone Only Strains
Critical Mass
Mr Nice Seedbank
Afghanistan Indica
Original Strains
Skunk Nr1
The Seed Bank
Skunk Nr1
Cultivators Choice
Afghanistan Indica
Original Strains
Mexico Sativa
Original Strains
Colombia Sativa
Original Strains
Jack Herer
Sensi Seeds
Northern Lights Nr5
The Seed Bank
USA Mostly Indica
Original Strains
Original Haze
Cultivators Choice
Haze
Unknown or Legendary
Mexico Sativa
Original Strains
Colombia Sativa
Original Strains
Thailand Sativa
Original Strains
India Sativa
Original Strains

Growing Boom Shankar: 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 Critical Plus or Jack Herer 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.

Boom Shankar FAQ

How long does Boom Shankar take to flower?

Boom Shankar typically flowers in around 62 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Boom Shankar an indica or a sativa?

Boom Shankar is listed as 50% Sativa, 50% Indica.

What are the parents of Boom Shankar?

Boom Shankar was bred from Critical Plus × Jack Herer by Sonic Seeds.

What environment does Boom Shankar 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 Boom Shankar? 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.