The Official Cannabis Independent strain guides
Chemdawg No 06 Shop
The Official Cannabis collection · sheet 06No 06 · Chemdawgvs G13

Comparison

Chemdawg vs G13

Both strains come with origin stories nobody can verify: a Grateful Dead parking lot and 13 seeds for Chemdawg, a government breeding program at the University of Mississippi for G13, according to the accounts Leafly repeats.1,2 In state labs Chemdawg tests lower, 22.94% median THC against 24.17% for G13, a small sample of only 97 tests.3

Side by side

ChemdawgG13
TypeHybrid4Indica2
Origin storyBag seed from a 1991 Grateful Dead show, grown in Western Massachusetts1A cutting said to have been taken from a late-1960s government breeding program at the University of Mississippi (legend)2
Median THC (state lab tests)22.94% (668 tests)24.17% (97 tests)
Middle half of THC results19.25%–25.37%16.40%–27.43%
Top terpenes (median)β-Caryophyllene, Limonene, β-Myrcene (389 tests)Limonene, β-Myrcene, β-Caryophyllene (56 tests)
Most-reported effectsEuphoric, relaxed, tingly; rated mostly energizing4Sleepy, euphoric, relaxed; rated mostly calming2
FlavorChemical, diesel, pungent4Earthy, pine, woody2

Lab rows come from the same state lab dataset and matching rules for both strains.3

Lab-tested THC: Chemdawg vs G13

16% 20% 24% 28% G13 G13: median 24.17%, middle half 16.40%–27.43%, 97 tests 24.2% n=97 Chemdawg Chemdawg: median 22.94%, middle half 19.25%–25.37%, 668 tests 22.9% n=668 Median total THC (dot) and middle half of tests (bar)
Median and middle half of total THC in state lab tests. Small sample: G13 has only 97 tests.3

G13 Haze

Leafly lists G13 Haze as G13 crossed with Haze, a hybrid its users call euphoric, happy and giggly. G13 Haze has its own guide in the Official Cannabis network at g13haze.com.5

More comparisons

Sources

  1. High Times, 25 years of Chem Dog (2016-09-07). Accessed Oct 3, 2026.
  2. Leafly, G13 strain information. Accessed Oct 3, 2026.
  3. Cannlytics (CC BY 4.0), cannabis_results: public state lab results (filtered and aggregated by Official Cannabis). Accessed Oct 3, 2026.
  4. Leafly, Chemdawg (aka Chemdog) strain information. Accessed Oct 3, 2026.
  5. Leafly, G13 Haze strain information. Accessed Oct 3, 2026.