Jack Herer lab report

Jack Herer cleared 20% total THC in 46% of 910 flower tests, about half; the median was 19.59%, while 5.4% reached 25% and 0.4% reached 30%, keeping higher cutoffs rare in this dataset.¹

State results separated sharply: 77% of Washington tests were at or above 20% (61 tests, median 22.00%), compared with 40% in Nevada (396 tests, median 19.06%).¹ Read that split through local growers, lab participation and testing rules as well as the plant itself.

Jack Herer labs put the median at 19.59%, and one of the two single THC figures we checked sat above that midpoint; Sensi Seeds had the highest single claim, can exceed 20% THC, reached by 46% of tests.^1,3

At the lower end, Leafly's 18% THC was reached by 67% of tests, so it covered most batches.^1,4 The ranges were broader: AllBud's 15–24% THC contained 84% of results, while the 21–26% THC range from Weedmaps contained 32%.^1,5,6

These comparisons do not identify any specific package; that requires the batch certificate of analysis.

The test-by-test terpene count for Jack Herer is lopsided: terpinolene was highest in 75% of 415 terpene tests, while β-caryophyllene led 19% and β-myrcene led 2.9%.¹

The Leafly terpene claim names terpinolene, and the tests match: it led 75% of them.^1,4

Nevada supplied 396 of the 415 terpene tests, so these shares mostly describe flower tested there.¹

The closest lab-chemistry matches to Jack Herer's typical terpene mix were Super Lemon Haze at 90%, Trainwreck at 88% and Cherry Diesel at 81%; among 36 compared strains, Papaya was farthest away at 30%.¹

Those closest matches all had terpinolene as the median-profile leader; a lower-overlap example is Gelato, at 56%, led by β-caryophyllene.¹

Method: we express each strain's median levels for eight terpenes as shares of its eight-terpene total, then sum the shared portions; identical mixes score 100. Strains enter the comparison only after 30 tests with individual terpene values.¹ Chemistry is all this comparison covers; it does not say how a strain will feel.

Jack Herer lands low in the THC table rather than near the top: its 19.59% median is 40th among 58 strains, just below Gelato 45 at 19.65% and just above Green Crack at 19.52%; its 25%-plus share ranks 45th at 5.4%.¹

From 17.13% to 22.00%, the central half of Jack Herer results covered 4.87 points; among 52 strains with enough data, that placed its spread 23rd narrowest, which is about average consistency.¹

Among the 6 labs with at least 20 tests of Jack Herer, medians ran from 17.70% at Lab C (Nevada, 113) to 24.00% at Lab F (Washington, 39), a gap of 6.30 points.¹

Inside Maryland, labs still separated: the three qualifying labs ran from 18.65% to 21.95%, differing by 3.30 points.¹

Because each lab may be seeing different growers’ flower, the gap alone cannot show that a lab reads high. Lab labels are anonymized here; Lab A has the most tests, and the downloadable file gives the lab names.

Yes for Jack Herer: in 780 tests with both measurements, the upper THC third beginning at 21.04% posted 2.05% median total terpenes, while the lower third at 17.91% or less posted 1.28%; the two terpene medians differed by 0.77 points.¹

The state check pointed the same direction in two of two qualifying states: Nevada up and Maryland up.¹ For Nevada, the lower-THC third had 1.20% median total terpenes and the higher-THC third had 1.53%.¹ Total terpene percentage is a weight-based aroma-compound measure; it does not address effects.

Jack Herer's year-by-year lab record rose clearly: across included years, median THC was 16.54% in 2018 (111 tests) and 20.86% in 2023 (214 tests), for +4.32 points overall.¹

Keeping the comparison inside Maryland keeps the direction upward: 16.54% in 2018 became 23.79% in 2023, a change of +7.25 points.¹ We omit years below the 20-test minimum.¹

For exact-name lab entries, Jack Herer had 1,544 results: 63% were flower, followed by concentrates at 22%, shake and trim at 7.8%, then other or unrecorded at 5.1%.¹ Only the flower entries feed this site's strain metrics.

Names longer than Jack Herer accounted for 296 results, or 16% of the broader name pool; the leading examples were “SVC Jack Herer Distillate” (21), “GVK x Jack Herer” (18) and “Nature's Jack Herrer #7” (16).¹ We leave those labels out because added words, cross markers and version terms may point to another plant; see our matching method.

Using stores no farther than 50 miles from each market center, the Weedmaps snapshot on Oct 5, 2026 showed 486 store listings carrying Jack Herer flower; 22 of 27 markets had at least one, putting it 7th of 58 tracked strains.²

Exact-eighth medians by market were Los Angeles $31.50 versus $25.00 for other tracked strains, New York $40.00 versus $35.70, Detroit $16.00 versus $16.00, Baltimore $30.00 versus $35.00, and Denver $35.00 versus $17.50.² The remaining comparable markets were Newark $40.25 versus $44.38, Portland $20.00 versus $27.09, Phoenix $50.00 versus $26.25, Seattle $32.00 versus $25.50, and Chicago $55.00 versus $40.00; Jack Herer was cheaper in three of the ten markets.²