GMO Cookies by Skunk House Genetics

GMO Cookies strain photo
Type indica/sativaFlower ±61 daysCross Chemdog × GSC Forum Cut

1 other breeder's version of GMO Cookies — compare flowering times side by side →

You can't talk about modern elite cuts without bowing to GMO Cookies. While Mamiko Seeds in Spain technically created the Chem Cookies cross by dusting the Forum Cut of GSC with Chemdawg D pollen, it was the legendary forum grower Skunkmasterflex who hunted down the specific, freak-of-nature phenotype that took over the world. Surfing the boards on ICMag and THC Farmer, Skunkmasterflex popped those seeds and found a single plant that smelled absolutely vile in the best way possible. And just to clear up the old forum argument—no, the creator has stated GMO does not stand for "Garlic, Mushroom, Onion," even though that perfectly describes the terpene profile.

Growing the true GMO cut is a wild ride. It definitely leans into its Chemdawg heritage when it comes to structure, stretching like absolute crazy during the first few weeks of flower. She stacks aggressively and takes a full 10 to 12 weeks to truly ripen, which tests the patience of commercial guys. But the resin production is stupid. The buds come out looking like they were rolled in wet sugar, and wash yields for hash makers are consistently top-tier. Skunk House Genetics took this legendary cut and ran with it, using the GMO to build out their massive "Burger" line, like the infamous Donny Burger.

The smoke is definitely an acquired taste, but once you get it, you're hooked. Cracking a jar of well-cured GMO hits you in the face with an offensive, savory stench of halitosis, gym socks, and raw garlic, backed by sharp chemical gas. It’s a heavy-hitting, brutally potent smoke that instantly glues you to the couch. It’s the exact opposite of sweet, fruity candy weed, and that’s exactly why the true heads love it.

🏆 Legendary Foundation Strain

This is one of the most influential cannabis varieties in history. GMO Cookies has been used to breed 80 documented descendant strains in our database, making it a cornerstone of modern genetics.

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Similar strains

Cherry BurgerSkunk House Genetics · ±63 daysTickle BurgerSkunk House GeneticsPapaya MousseSkunk House GeneticsUrkle LemonsSkunk House Genetics · ±67 daysRotten Fruit CocktailSkunk House Genetics · ±60 daysTKOSkunk House Genetics · ±61 daysDelta BluesDominion Seed Company · ±61 daysFaso de los TorosFuzzy Genetics · ±61 daysGeorgia PieRaw Genetics · ±61 daysGMO CookiesMamiko Seeds · ±61 daysGoTimeJinxproof · ±61 daysNight CapC.C.G · ±61 daysAll Skunk House Genetics →
BreederSkunk House Genetics
Typeindica/sativa
Flowering time±61 days
EnvironmentOutdoors
LineageChemdog × GSC Forum Cut
DescendantsFlawless, Nate's Meat Pie, Supreme, Yellow Cab, First Class Funk, GMO x MAC, Birds of Fire, 8″ Bagel, Double D's, Bay Watch, Kitchen Sink, RowdyRoddyPiper, GMO Fuel, Ballsweat, TKO, Han Solo Burger, Koko Barzz, Party Foul, Slush Puppy, GMO Cookies, Mo Wowie, Fly Tape, Offendo, Hoelato, GMO Rootbeer, Bad Berry, Super Petrol, Dirty Sanchez, Dirty Thirty, Larryland, Triple Burger, Sasquatch Puree, Poli'ahu, JMO, The Dark Hollow, 1984, Slap N Tickle, Gizmo, Hype Train, The Don Mega, Unicorn Poop, Agent Garlic, Papaya Julius, Begotten, ChemMO, Mule Fuel, Juggernaut, Garlic Candy, Highland Queen, Tickle Burger, Valley Orange, Van Helsing, El Xupet Negre, Candy Lime, KiZito, Sea Moss, Garlic Breath 2.0, Modified Banana, Double Burger, Burgers n' Beer, Milo, Garlic Breath, White Diamonds, Blisterene, White Mo, Sans Souci, Mo Swayze, New Citrus, Chem Chillz, Modified Mints, GMO, GMO, KEMO, Acid Wash – El Krem, Cherry Stardust, Altered Fruit, Body and Soul, Sour Sapphire, Garlic Daiquiri, Krypto

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🧬 Explore the family: Chemdog · GSC Forum Cut · Flawless · Nate's Meat Pie · Supreme · Yellow Cab · First Class Funk · GMO x MAC · Birds of Fire · 8″ Bagel

Ancestry Pedigree

Chemdog
Unknown or Legendary
Indica Sativa
Original Strains
GSC Forum Cut
Clone Only Strains
Girl Scout Cookies
Clone Only Strains
GSC Thin Mints
Clone Only Strains
OG Kush
Clone Only Strains
Unknown Strain
Original Strains
Hindu Kush Indica
Original Strains
F1 Durban
Unknown or Legendary
F1
Unknown or Legendary
Unknown Strain
Original Strains
Durban Poison
Unknown or Legendary
South Africa Sativa
Original Strains

Growing GMO Cookies: 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 Chemdog or GSC Forum Cut 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.

GMO Cookies FAQ

How long does GMO Cookies take to flower?

GMO Cookies typically flowers in around 61 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is GMO Cookies an indica or a sativa?

GMO Cookies is listed as indica/sativa.

What are the parents of GMO Cookies?

GMO Cookies was bred from Chemdog × GSC Forum Cut by Skunk House Genetics.

What environment does GMO Cookies 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 GMO Cookies? 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.