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Close-up of a cannabis flower (illustrative photo)
THC
20–32%
Illustrative photo — not this specific strain · Photo: DavidCardinez / Pixabay
HybridIndica-leaningChemdawg (Chem D) × Girl Scout Cookies (Forum cut)

GMO (Garlic Cookies) strain

Also known as GMO, Garlic Cookies, GMO Cookies, Chem Cookies

The garlic-and-diesel Chem D × Forum GSC cross behind Garlic Breath and Modified Grapes; savory, pungent and very potent.

Not yet reviewed by our editors. Figures come from the sources listed below. How we check

Lineage
Chemdawg (Chem D) × Girl Scout Cookies (Forum cut)
Breeder
Mamiko Seeds (also credited to a grower known as Skunkmasterflex)
Origin
United States

Reported effects


May cause

What consumers commonly report. Effects vary with dose, tolerance and batch.

Flavors
  • Garlic
  • Cheese
  • Diesel
  • Earthy
  • Pungent

About GMO (Garlic Cookies)

Say GMO to a cannabis buyer and they think of garlic, not genetic engineering. The letters are usually read as garlic, mushroom, onion, a nod to the savory funk that made this Chem D × Girl Scout Cookies cross one of the most recognizable smells in modern weed.

Leafly describes a loud mix of garlic, onion, diesel and earthy funk, and its reviewers add blue cheese and cheese to the flavor list. AllBud's two pages for the strain mention coffee, spice and a pungent, fuel-heavy aroma. It is the opposite of a dessert strain, and that contrast is a large part of its appeal.

GMO effects: slow build, heavy landing

Leafly's write-up describes effects that build slowly but hit hard, ending in full-body relaxation, strong munchies and, at higher doses, sedation. The review votes it has collected so far lean tingly, creative and relaxed. Potency numbers vary by page: Leafly's lab median is 28% THC, AllBud's Garlic Cookies page cites 30–32%, and its GMO Cookies page 20–24%. Treat any jar of GMO as strong until the label says otherwise.

Why breeders love it

GMO's resin and odor made it a favorite parent. ThugPug Genetics crossed it with Mendo Breath to make Garlic Breath, and Symbiotic Genetics paired it with Purple Punch to make Modified Grapes. Both keep some of the savory punch while adding sweetness or fruit.

This is an evening strain for experienced consumers who like pungent, gassy flavors. If garlic and onion sound unappealing in a joint, one of its sweeter children is the better starting point.

Origin & history

SeedFinder attributes GMO to Mamiko Seeds, which crossed a Chemdawg D cut with the Forum cut of Girl Scout Cookies, and notes that the skunky phenotype has also been credited to a grower called Skunkmasterflex. Because dispensaries were wary of the letters GMO, the same plant is widely sold as Garlic Cookies or GMO Cookies, and an ICMag thread from the breeder's circle lists Chem Cookies and D-Cookies as further names.

What people use it for

  • Stress
  • Evening unwinding
  • Fatigue

These are reasons consumers give for choosing GMO (Garlic Cookies), gathered from public strain reports. They are not medical claims or advice, and they haven’t been tested in clinical trials. If you’re managing a health condition, talk to a clinician.

GMO (Garlic Cookies): frequently asked questions

What does GMO stand for in cannabis?

It refers to the aroma, usually read as garlic, mushroom and onion. The strain is not genetically modified.

Is GMO the same as Garlic Cookies?

Yes. Garlic Cookies and GMO Cookies are common names for the same Chem D × Forum GSC cross, and AllBud, SeedFinder and Leafly treat them as one strain.

How strong is GMO?

Leafly's lab median is 28% THC. AllBud reports averages from 20–24% to 30–32% depending on which listing you read.

Sources

  1. Leafly — GMO (Garlic Cookies) strain page · checked Sep 2026
  2. AllBud — Garlic Cookies strain page · checked Sep 2026
  3. AllBud — GMO Cookies strain page · checked Sep 2026
  4. SeedFinder — GMO Cookies (Mamiko Seeds) · checked Sep 2026
  5. Weedmaps — GMO Cookies (aka Garlic Mushroom Onion) strain page · checked Sep 2026
  6. ICMag — Garlic Cookies, Chem Cookies, GMO, D-Cookies by Mamiko Seeds (forum thread) · checked Sep 2026

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