Shackzilla by Sannies Seeds

Shackzilla strain photo
Type mostly sativaFlower ±74 daysCross Super Silver Haze × Shack F3

Bred by Sannies Seeds from Super Silver Haze × Shack F3, Shackzilla is a sativa-leaning cannabis variety. Indoors it typically finishes flowering in around 74 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Shackzilla grows against.

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Similar strains

SilverfieldsSannies Seeds · ±77 daysSannie's Seeds - Recovery HazeSannies SeedsKolossusSannies Seeds · ±63 daysHericulesSannies Seeds · ±67 daysKilling Fields F2Sannies Seeds · ±81 daysSannie's JackSannies Seeds · ±81 daysAuto Strawberry BananaAnesia Seeds · ±74 daysCherry Flo FighterSeattle Chronic Seeds · ±74 daysCherry MistSeattle Chronic Seeds · ±74 daysChocolate BerryEskobar Seeds · ±74 daysChocolate ThaiSnowHigh Seeds · ±74 daysClockwork Orange BX1 V2Riot Seeds · ±74 daysAll Sannies Seeds →
BreederSannies Seeds
Typemostly sativa
Flowering time±74 days
EnvironmentIndoors
LineageSuper Silver Haze × Shack F3
DescendantsKaiju

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🧬 Explore the family: Super Silver Haze · Shack F3 · Kaiju

Ancestry Pedigree

Super Silver Haze
Mr Nice Seedbank
Super Silver Haze
Green House Seeds
Original Haze
Cultivators Choice
Haze
Unknown or Legendary
Mexico Sativa
Original Strains
Colombia Sativa
Original Strains
Thailand Sativa
Original Strains
India Sativa
Original Strains
Original Haze
Cultivators Choice
USA Mostly Indica
Original Strains
Shack F3
Sannies Seeds
Sannies Jack
Sannies Seeds
Jack Herer
Sensi Seeds
Northern Lights Nr5
The Seed Bank
Northern Lights 5 Skunk Nr1 F1 Hybrid
The Seed Bank
Northern Lights Nr5
The Seed Bank
Skunk Nr1
The Seed Bank
Original Haze
Cultivators Choice
Shiva
Homegrown Fantaseeds
India Hybrid
Original Strains

Growing Shackzilla: 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 Super Silver Haze or Shack F3 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.

Shackzilla FAQ

How long does Shackzilla take to flower?

Shackzilla typically flowers in around 74 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Shackzilla an indica or a sativa?

Shackzilla is listed as mostly sativa.

What are the parents of Shackzilla?

Shackzilla was bred from Super Silver Haze × Shack F3 by Sannies Seeds.

What environment does Shackzilla 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 Shackzilla? 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.