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Girl Scout Cookies Extreme Seeds seed pack
FeminizedBeginnerTHC 30%Indica Dominant

Girl Scout Cookies Extreme Seeds

30% THC feminized seeds, beginner-friendly to grow

$58.65 – $152.157 pack sizes — choose at ILGM

Buy at ILGM

Guaranteed germination · Free US shipping over $50 · Discreet packaging

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Our take

Girl Scout Cookies Extreme is an indica-dominant feminized strain crossing OG Kush with Durban Poison, originally developed by Berner and Jigga. With THC testing around 30%, it's one of the stronger strains you can grow at home — and it's genuinely forgiving enough for first-time growers. Expect a rich aroma of vanilla, mint, and citrus backed by caryophyllene, limonene, and myrcene.

Yields up to 510 g/m² indoors after a 63-day flowering period
Finishes outdoors in late September to early October — fits shorter warm seasons
Feminized photoperiod seeds mean nearly every plant flowers without sorting out males

Grow specs

GenotypeIndica Dominant
THC30%
CBD levelLow
EffectsEuphoric, Giggly, Happy, Hungry, Relaxed
Taste & aromaCitrus, Cookie, Floral, Mint, Sweet, Vanilla
Dominant terpenesCaryophyllene, Limonene, Myrcene
Grow difficultyBeginner
ClimateOutdoor, Indoor, Sunny, Continental, Mediterranean
Flowering (indoor)63 days
Harvest (outdoor)Late September to early October
Yield potential510 gr/m²
Plant heightMedium
Bud structureMedium Density, Medium Size, Elongated
Optimal temp65-80°F
Optimal humidity55-65%
LineageOG Kush x Durban Poison
Genetics byGilbert Anthony Milam, Jr. (Berner) & Jai Chang (Jigga)

Specs are ILGM's published figures for this product; catalog and pricing last verified August 2026. Our write-up is our own — see how we make money.

Growing notes

GSCE suits indoor and outdoor grows across sunny, continental, and Mediterranean climates. Plants reach a medium height, making them manageable in tents or garden beds. Indoors, expect harvest around 63 days into flower. Outdoors, plan for late September through early October. The beginner difficulty rating holds — this strain responds well to standard photoperiod techniques without demanding advanced care.

New to growing? Start with the complete guide, plan your gear with tent setups, and diagnose problems with troubleshoot.

Want variety instead?

Mix packs bundle three proven strains (30 seeds) at up to 50% off buying separately — the best value in the catalog.

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