High Times Strain Profile
GMO
Garlic Funk, Chem Gas, and a Twelve-Week Stink
GMO is the clone-only Chem Cookies freak that turned savory weed into its own lane. Chem D × Forum GSC genetics bring garlic, diesel, pepper, towering stretch, greasy resin, and a heavy finish that made the cut a hash-room standard.
Overview
GMO smells like somebody sautéed garlic beside a leaking gas can, then shut the whole operation inside a warm grow room. The clone came from Mamiko Seeds’ Chem Cookies population, a Chem D × Forum GSC cross, and pushes the savory Chem side hard: diesel, garlic, onion, damp earth, pepper, and skunk over just enough cookie sweetness to keep things weird.
The high tends to open euphoric before dropping more weight into the body. Relaxation leads, sleepiness can build with a heavier session, and a brighter cerebral lift keeps the first half from feeling flat. Growers know GMO for another reason entirely: massive stretch, a long 11–12-week finish, heavy production, and trichomes that made the cut one of modern hash culture’s favorite washing plants.
Flavor, Aroma & Terpenes
Aroma & Flavor
Top Terpenes
GMO is where the dessert era went feral. Diesel and Chem fumes lead, followed by garlic, onion skin, pepper, damp earth, and a savory funk that can drift toward mushroom, skunk, or something closer to an old basement than a bakery. A faint cookie sweetness can show up underneath, but nobody keeps GMO around because it smells polite.
GMO is also a good reminder that the loudest smell in cannabis does not always come from the three biggest terpenes on a standard panel. Research on savory cultivars including GMO has linked part of that strange, mothball-like, sulfurous funk to minor nonterpenoid compounds that can punch far above their concentration.
Effects
GMO usually starts higher in the head than its reputation suggests. A euphoric lift can hang around early, but the Chem-and-Cookies weight catches up, settling into a deep, stoney body calm that gets heavier as the session builds. For many smokers, this is the cultivar you reach for after the day is already handled.
For Growers
Growing GMO
Genetics & Origin
GMO begins with Mamiko Seeds in Spain, which made Chem Cookies by crossing Chem D with the Forum cut of GSC. In 2013, Michigan grower Skunkmasterflex received seeds from that population, ran them, and found the freak that became GMO. Mamiko made the cross. Skunkmasterflex selected, preserved, named, and spread the clone.
The name has collected its own folklore. “Garlic, Mushroom, Onion” fits the smell beautifully, but Skunkmasterflex has said GMO came from news about genetically modified ingredients in Girl Scout cookies. The plant’s freakish vigor only made the joke land harder.
By 2017, the cut was already winning. GMO Cookies took first in Indica Flower at the High Times Midwest Cannabis Cup, while GMO extracts also placed at Midwest, Michigan, and Southern California Cup events. Its real legacy may be even bigger in the wash room, where its resin production helped make savory gas a breeding category of its own.
Known For:
- Chem D × Forum GSC genetics
- Selected by Skunkmasterflex from Mamiko Seeds stock
- Garlic, onion, diesel, and Chem funk
- Long 11–12-week flowering time
- Heavy resin and solventless extraction performance
- 2017 High Times Cannabis Cup placements
- Breeder / Origin
- Mamiko Seeds cross; GMO clone selected in Michigan by Skunkmasterflex
- Geographic Origin
- Michigan, United States; parent seed line bred by Mamiko Seeds in Spain
- Parent Strains
-
- Chem D
- Forum GSC
Grower Notes
| Flowering Time | About 11–12 weeks for the original Skunkmasterflex cut |
|---|---|
| Indoor / Outdoor | Both; strongest documentation is indoor |
| Yield | High |
| Plant Structure | Tall, vigorous, long internodes, heavy stretch, large resinous colas |
| Grow Difficulty | Moderate |
| Climate | Adaptable, but the long finish favors controlled rooms or a generous outdoor season |
| Watch For | Extreme stretch, canopy height, long finishing time, heavy branches, aggressive odor |
| Grow Style | Trellising, ScrOG, topping, canopy spreading, branch support |
Common Grow Tips
- Flip with serious headroom; the original GMO cut can stretch two to three times its vegetative height.
- Trellis early and keep tucking through stretch so tall branches do not take over the room.
- Support heavy late-flower colas before their weight starts pulling long branches out of position.
- Give the cut its full finish when possible; authentic GMO commonly runs 11–12 weeks.
- Keep canopy spacing open so vigorous branches and large tops do not crowd one another.
- Plan odor control accordingly; GMO's garlic-Chem funk can announce the room long before harvest.
GMO grows like it missed the memo about being indica-dominant. The original cut can stretch two to three times its vegetative height, carries wide internodal spacing, and keeps pushing long after shorter hybrids have settled down. Mature runs commonly go 11–12 weeks, with documented commercial flower taken as late as 87 days.
Growing GMO?
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- How do I improve terpene production on GMO?
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