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The Official Cannabis collection · sheet 13No 13 · G13 HazeTHC & terpenes

Lab data

G13 Haze potency: THC and CBD from 14 lab tests

In only 14 state lab tests, a small sample, G13 Haze flower had a median total THC of 20.30%, with the middle half of results between 19.98% and 21.86%.1 CBD is low, and only 2 of the 14 tests reported individual terpene values, too few for a terpene profile.1

Small sample: only 14 matched tests. Treat the figures on this page as indicative, not definitive.1

20.30%median total THC (small sample)
19.98%–21.86%middle half
18.56%–22.86%middle 80%
7.1%of tests at 25% THC or more
14tests · 4 labs

THC distribution

Total THC across 14 tests

0 10 2–3% THC: 0 tests 3–4% THC: 0 tests 4–5% THC: 0 tests 5–6% THC: 0 tests 6–7% THC: 0 tests 7–8% THC: 0 tests 8–9% THC: 0 tests 9–10% THC: 0 tests 10–11% THC: 0 tests 11–12% THC: 0 tests 12–13% THC: 0 tests 13–14% THC: 0 tests 14–15% THC: 0 tests 15–16% THC: 0 tests 16–17% THC: 0 tests 17–18% THC: 1 tests 18–19% THC: 1 tests 19–20% THC: 2 tests 20–21% THC: 5 tests 21–22% THC: 2 tests 22–23% THC: 1 tests 23–24% THC: 1 tests 24–25% THC: 0 tests 25–26% THC: 0 tests 26–27% THC: 1 tests 27–28% THC: 0 tests 28–29% THC: 0 tests 29–30% THC: 0 tests 30–31% THC: 0 tests 31–32% THC: 0 tests 32–33% THC: 0 tests 33–34% THC: 0 tests 34–35% THC: 0 tests 35–36% THC: 0 tests 4%8%12%16%20%24%28%32%36% median 20.30% Total THC, % by weight
One-point THC bands; shaded: middle half of results. 14 flower tests, 2015-12-09 to 2022-06-08.1

THC by year

Too few tests per year to show a trend: no year has 20 or more tests (2015: 1, 2019: 10, 2021: 1, 2022: 2).1

THC by state

StateTestsMedian THC
Washington1220.30%

States with at least 10 tests. Labs, testing rules and sampling differ by state, so compare states with care.1

Terpene profile

Only 2 of the 14 matched tests report individual terpene values, too few for a profile (we chart terpenes reported by at least 10 tests).1

How G13 Haze compares

Lab-tested THC across 17 well-known strains

16% 20% 24% Wedding Cake Wedding Cake: median 23.01%, middle half 20.24%–25.70%, 3,085 tests 23.0% n=3,085 Blueberry Blueberry: median 21.91%, middle half 18.40%–25.23%, 411 tests 21.9% n=411 Sour Diesel Sour Diesel: median 21.68%, middle half 19.00%–25.30%, 1,071 tests 21.7% n=1,071 Gelato Gelato: median 21.49%, middle half 18.90%–24.63%, 1,845 tests 21.5% n=1,845 OG Kush OG Kush: median 20.87%, middle half 18.06%–23.36%, 379 tests 20.9% n=379 Super Lemon Haze Super Lemon Haze: median 20.84%, middle half 18.41%–23.48%, 1,543 tests 20.8% n=1,543 G13 Haze G13 Haze: median 20.30%, middle half 19.98%–21.86%, 14 tests 20.3% n=14 Northern Lights Northern Lights: median 20.03%, middle half 17.28%–22.05%, 406 tests 20.0% n=406 Strawberry Cough Strawberry Cough: median 20.00%, middle half 15.88%–23.00%, 231 tests 20.0% n=231 Blue Dream Blue Dream: median 19.96%, middle half 17.62%–22.37%, 2,118 tests 20.0% n=2,118 Pineapple Express Pineapple Express: median 19.80%, middle half 17.54%–21.75%, 461 tests 19.8% n=461 Girl Scout Cookies Girl Scout Cookies: median 19.72%, middle half 17.80%–21.92%, 567 tests 19.7% n=567 Jack Herer Jack Herer: median 19.59%, middle half 17.13%–22.00%, 910 tests 19.6% n=910 Green Crack Green Crack: median 19.52%, middle half 16.79%–21.73%, 1,236 tests 19.5% n=1,236 Durban Poison Durban Poison: median 19.45%, middle half 17.33%–21.99%, 528 tests 19.4% n=528 Trainwreck Trainwreck: median 18.65%, middle half 16.67%–21.42%, 248 tests 18.6% n=248 Granddaddy Purple Granddaddy Purple: median 17.87%, middle half 15.00%–21.55%, 512 tests 17.9% n=512 Median total THC (dot) and middle half of tests (bar)
Every strain processed with the same matching rules from the same dataset.1

How published THC figures compare

Strain databases publish a single figure or a range: Leafly lists 21% THC and AllBud 21–29%, or 19–23% on its separate entry for Barney’s Farm’s version.2,3,4 Barney’s Farm advertises 23% on both of its current seed entries; an older version of its description, reproduced by SeedFinder, said 20% THC and 0.7% CBD.5,6,7

In our small lab sample, 90% of G13 Haze flower tested below 22.86%, 1 test reached 25% or more, and the highest result was 26.17%, the single test from 2015.1 With only 14 tests, a small sample, 10 of them from 2019, the figures describe a few growers’ crops rather than the cultivar; a certificate of analysis for the batch in hand is the only number that applies to it.1

Download the data

The 14 matched tests behind this page, one row per test: state, test date, lab, product name, product type, total THC, total CBD and terpenes.

Download CSV Read the methodology

License: CC BY 4.0. Credit: “Source: Cannlytics, cannabis_results (CC BY 4.0), analysis by Official Cannabis.” The data were filtered and aggregated from the original.

Limits of this data

  • Coverage is thin and dated. Washington (12) and Massachusetts (2) supply all 14 tests, 10 of them from 2019; the latest is from 2022. Oregon and Rhode Island results carry no product names and could not be matched.
  • Washington tests count only when the strain field and the product name both name the strain; 1 Washington flower result with only a generic product name was left out.
  • Some labs report higher THC than others, so we publish medians and middle ranges rather than maxima. One lab supplied 57.1% of these tests (4 labs in total) and one producer 71.4%.
  • We matched names strictly: 2 results under near-miss names ("G13 Haze NYC Diesel" and "NYC × G13 Haze") are excluded and counted, G13 Haze never counts as G13, and duplicate certificates are removed. Terpenes: only 2 of the 14 tests reported individual terpene values (Massachusetts); Washington labs report none.

Sources

  1. Cannlytics (CC BY 4.0), cannabis_results: public state lab results (filtered and aggregated by Official Cannabis). Accessed Oct 3, 2026.
  2. Leafly, G13 Haze strain information. Accessed Oct 3, 2026.
  3. AllBud, G13 Haze marijuana strain information and reviews. Accessed Oct 3, 2026.
  4. AllBud, BF G13 Haze (Barney’s Farm) marijuana strain information and reviews. Accessed Oct 3, 2026.
  5. Barney’s Farm, G13 Haze: feminized seed specifications. Accessed Oct 3, 2026.
  6. Barney’s Farm, G13 Haze: regular seed specifications. Accessed Oct 3, 2026.
  7. SeedFinder, G13 Haze (Barneys Farm): strain info, breeder description, awards and grower reviews. Accessed Oct 3, 2026.