The Jack by SoCal Seed Co.

Type mostly sativaFlower ±77 daysCross Jack Herer × AToA

Growers reach for The Jack as a sativa-leaning option, a cross of Jack Herer × AToA out of SoCal Seed Co.. Indoors it typically finishes flowering in around 77 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real The Jack grows against.

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Similar strains

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BreederSoCal Seed Co.
Typemostly sativa
Flowering time±77 days
EnvironmentIndoors
LineageJack Herer × AToA

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🧬 Explore the family: Jack Herer · AToA

Ancestry Pedigree

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
AToA
SoCal Seed Collective
Trainwreck
Clone Only Strains
USA Hybrid
Original Strains

Growing The Jack: 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 Jack Herer or AToA 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.

The Jack FAQ

How long does The Jack take to flower?

The Jack typically flowers in around 77 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is The Jack an indica or a sativa?

The Jack is listed as mostly sativa.

What are the parents of The Jack?

The Jack was bred from Jack Herer × AToA by SoCal Seed Co..

What environment does The Jack 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 The Jack? 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.