GMO Cookies is an indica-dominant hybrid cannabis strain, created by crossing the classic Chemdawg and Girl Scout Cookies. First introduced in 2018 by the breeders at Symbiotic Genetics, this strain quickly became known for its potent effects and unique, earthy aroma. With a flavour profile that includes sweet, earthy, and diesel notes, GMO Cookies is particularly popular among users looking for a strain that delivers heavy relaxation without overwhelming sedation. This article explores the origins of GMO Cookies, its genetic makeup, typical effects, terpene profile, and cultivation characteristics to help you understand why it continues to be a top choice for many.

Article Summary

Strain Overview: Introduction to GMO Cookies, its indica-dominant classification, and flavour profile.
Genetics and Lineage: Insight into its Chemdawg and Girl Scout Cookies parentage and the traits it brings.
Effects and Experience: Commonly reported effects and how GMO Cookies is typically described by users.
Flavour and Terpenes: Overview of the strain’s sweet, earthy, and diesel aroma with dominant terpenes.
Growing Characteristics: Key cultivation details such as flowering time, yield potential, plant size, and difficulty level.

GMO Cookies growing indoors in a tent

What Does GMO Stand For In GMO Cookies Strain? 

The name "GMO" in GMO Cookies stands for “Garlic, Mushroom, Onion” — an unusual choice in a market where most cannabis strains are named after sweeter or fruitier flavour profiles. However, it’s a fitting name for this strain, as the aroma is commonly described as pungent and earthy, with strong garlic and onion notes, often followed by a diesel finish. This distinctive smell makes GMO Cookies one of the most aromatic strains in the market, and it’s not for those looking to keep their grow or smoke sessions discreet. Even with the windows open, the smell tends to linger heavily.

GMO Cookies’ terpene profile is dominated by myrcene, caryophyllene, and pinene. These terpenes are responsible for its unique, savory scent, as well as its complex flavor profile that many cannabis enthusiasts appreciate. While the aroma can be overwhelming for some, it is a key part of the strain’s appeal to those who enjoy bold, strong-smelling cannabis.

Is GMO Cookies An Indica or Sativa Strain? 

GMO Cookies is primarily an indica-dominant hybrid, with a typical 90/10 indica-to-sativa ratio. The strain is known for its deeply relaxing effects, which are commonly described as calming and sedating without inducing the intense “couch-lock” that many indica strains are known for. Many users appreciate the blend of mental clarity and physical relaxation, making it a good choice for those seeking to unwind without feeling completely immobilised.

GMO Cookies’ growth characteristics reflect its indica dominance, with short, bushy plants that tend to grow horizontally rather than vertically. The structure and effects of the strain make it a popular choice for growers looking for a manageable plant with potent results.

dried bud of GMO Cookies

What Is The Strength Of GMO Cookies? 

Lab results typically show that GMO Cookies has a THC content ranging from 20% to 24%, placing it on the stronger end of the potency spectrum but not quite in the top-tier THC ranges of some other strains. However, it’s important to note that strength is not solely determined by THC levels. Terpene composition and other cannabinoids play a role in shaping the overall experience.

Many users report that the effects hit hard and fast, providing an initial cerebral high that quickly transitions into a warm, body-focused relaxation. The relaxing effects are perfect for unwinding after a long day, but due to its potency, GMO Cookies is best enjoyed in moderation, especially for those with lower tolerance.

STRAIN CHARACTERISTICS
THC %Up to 24%
Flowering Time8-10 Weeks
Outdoor harvestOctober
Yield500-600gr/m²
Indica/SativaIndica Dominant
HeightMedium: 100cm-180cm
DifficultyMedium
CBD Content<1%
ClimateWarm
Seed TypeFeminized
GeneticsChemdawg x Girl Scout Cookies
EffectsCalming, Relaxing, Uplifting
TasteSweet, Earthy, Diesel
TerpeneBeta-Caryophyllene, Limonene, Myrcene

Should you be growing GMO Cookies?

GMO Cookies is considered a relatively easy strain to grow, but it does require some attention to detail. The plants typically stay small and bushy, making them ideal for indoor cultivation, especially in smaller spaces. Like most indica-dominant strains, GMO Cookies responds well to low-stress training (LST) techniques and can benefit from scrog-style setups to maximise yield and light penetration.

GMO Cookies prefers a warm environment, and while it can be grown in cooler climates, it thrives in consistently warm conditions. Maintaining proper airflow and managing humidity is essential, especially in the final stages of flowering when dense buds are more susceptible to mold and mildew.


How Long Does GMO Cookies Take to Flower?

GMO Cookies is a photoperiod strain with a flowering time that typically falls between 8 to 10 weeks. Growers often report that the plant matures relatively quickly compared to other hybrids, making it a popular choice for those looking for a fast turnaround.

Outdoor harvests usually occur in mid to late October, depending on local climate conditions. Indoors, the shorter flowering time allows growers to harvest quickly and maximise their yield.

How Much Does GMO Cookies Yield?

GMO Cookies is considered a moderate-to-high yielder, with indoor harvests generally producing around 500–600 grams per square metre. Outdoors, yields can be even higher, particularly when plants are allowed to grow for a full season in favourable conditions.

Growers who employ high-stress training techniques such as topping and scrog can see even better results, though it’s important to support the plants during the final flowering weeks due to the weight of the buds. Proper support and training methods can help ensure a successful harvest.

Flavor and Terpene Profile

The flavor of GMO Cookies is one of its defining features. It has a unique profile dominated by earthy, savory notes of garlic and onion, with a subtle diesel finish. The dominant terpenes in GMO Cookies are myrcene, caryophyllene, and pinene, which contribute to the strain’s pungent aroma and full-bodied flavor.

These terpenes also provide additional benefits, with caryophyllene acting as a natural anti-inflammatory and myrcene offering a calming effect. Together, these compounds create a well-rounded sensory experience that has made GMO Cookies a fan favourite