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The Official Cannabis collection · sheet 63No 63 · GMO Cookiesvs Sour Diesel

Comparison

GMO Cookies vs Sour Diesel

Both come from Chemdawg: Sour Diesel is Chemdawg × Super Skunk, GMO is Chem D × GSC.1,2 They pull in opposite directions, though: Leafly rates Sour Diesel energizing, with energetic, uplifted and talkative as its top effects, and GMO mostly calming.1,3 GMO tests higher in state labs: 26.74% median THC against 21.68% for Sour Diesel.4

Side by side

GMO CookiesSour Diesel
TypeIndica-dominant hybrid; mostly calming per Leafly3Hybrid; energizing per Leafly1
LineageChemdawg (Chem D) × Girl Scout Cookies (Forum cut)3,5Chemdawg × Super Skunk1
Median THC (state lab tests)26.74% (2,159 tests)21.68% (1,071 tests)
Middle half of THC results23.46%–29.83%19.00%–25.30%
Top terpenes (median)Limonene, β-Myrcene, β-Caryophyllene (456 tests)β-Caryophyllene, Limonene, β-Myrcene (167 tests)
Leafly’s top effectsRelaxed, sleepy, euphoric3Energetic, uplifted, talkative1
FlavorChemical, pepper, pungent3Diesel, chemical, skunk1
Flowering8–9 weeks (Leafly)37–9 weeks (Leafly)1

Lab rows come from the same state lab dataset and matching rules for both strains.4

Lab-tested THC: GMO Cookies vs Sour Diesel

20% 24% 28% GMO Cookies GMO Cookies: median 26.74%, middle half 23.46%–29.83%, 2,159 tests 26.7% n=2,159 Sour Diesel Sour Diesel: median 21.68%, middle half 19.00%–25.30%, 1,071 tests 21.7% n=1,071 Median total THC (dot) and middle half of tests (bar)
Median and middle half of total THC in state lab tests.4

Fuel and funk

Leafly’s 2022 feature says only Diesel or Glue approach GMO in outright loudness, and on Weedmaps 31% of GMO’s flavor reports say diesel.5,6 Sour Diesel has its own guide in the Official Cannabis network at sourdiesel.com.

Which is easier to find

In Weedmaps snapshots from Oct 4, 2026 (GMO Cookies) and Oct 3, 2026 (Sour Diesel), 193 stores within 50 miles of Los Angeles listed GMO Cookies flower on Weedmaps, against 156 stores for Sour Diesel; around New York the counts were 93 and 125.7

More comparisons

Sources

  1. Leafly, Sour Diesel strain information. Accessed Oct 4, 2026.
  2. DNA Genetics, Chemdawg cannabis strain (2025-06-23). Accessed Oct 4, 2026.
  3. Leafly, GMO Cookies (aka Garlic Cookies, GMO Garlic Cookies) strain information. Accessed Oct 4, 2026.
  4. Cannlytics (CC BY 4.0), cannabis_results: public state lab results (filtered and aggregated by Official Cannabis). Accessed Oct 4, 2026.
  5. Weedmaps, GMO Cookies (aka Garlic Mushroom Onion) strain page. Accessed Oct 4, 2026.
  6. Leafly, Get funky with GMO Cookies: August’s Leafly HighLight (David Downs) (2022-08-01). Accessed Oct 4, 2026.
  7. Weedmaps listings, compiled by Official Cannabis, Weedmaps flower menu snapshot, 27 US markets, Oct 4, 2026. Accessed Oct 4, 2026.