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Jack Herer Auto
Well-balanced hybrid autoflower with focused and energetic effects and uniform canopy potential. Ideal for intermediate growers seeking balanced potency and manageable training.
◉Flavor:Sweet dough, fruity candy, pine
Grower tip: Feed lightly in veg, then ramp up through flower
Premium stabilized genetics · germination guaranteed
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Royal King Genetics — first-party test batch
Numbers below are from our internal seed-lot QC and verified grower submissions, not breeder marketing. Determined from a single batch tested 2026-04-23 on 100 seeds.
About Jack Herer Auto
The genetic expression of Jack Herer — a 45/55 hybrid — varies meaningfully across phenotypes. Most seeds from this line produce the dominant phenotype: a moderate frame that branches well and produces evenly developed colas with a mix of density and airflow. But expect variation — roughly 1 in 4 plants will lean more strongly in one parental direction, which is part of what makes pheno-hunting this strain interesting. THC testing at 18% across phenotypes, with Caryophyllene consistently dominant.
Genetic Expression in the Grow Room
The dominant phenotype — which appears in roughly 70-75% of seeds — produces a balanced frame that takes to training intuitively. The branching pattern suggests hybrid vigor — aggressive enough to fill space without becoming unmanageable. Flower structure falls between dense and airy, which provides a good balance of bag appeal and mold resistance.
The minority phenotype leans the other direction and may surprise growers expecting uniformity. Flowering completes in 8-10 weeks across phenotypes. Yield: 350-450g/m² indoor, 600-800g/plant outdoor. Height: Medium (3-4 ft). Rated intermediate — the phenotype variation adds a layer of interest without adding significant difficulty. Growing from regular seeds with autoflowering genetics.
What Users Report
Jack Herer at 18% THC produces focused, energetic sensations that users consistently describe as versatile enough to serve different purposes depending on dose and setting. Lower doses lean more cerebral and functional. Higher doses bring the body effect forward. The Caryophyllene/Myrcene terpene pairing gives this strain a distinctive effect signature that experienced users recognize as different from other hybrids at similar THC levels.
Best suited for flexible use across the day — lighter doses for daytime function, heavier doses for evening relaxation.
Terpene Profile
Dominant terpenes: Caryophyllene (primary), Myrcene (secondary), Humulene (tertiary). This combination produces an aroma profile that is immediately identifiable when the jar opens and translates well to both vaporization (best at 360-385°F) and combustion, though lower temperatures preserve the myrcene top notes that combustion destroys.
Who Should Grow Jack Herer
This strain fits growers with at least one harvest behind them who want to step up in quality without dramatically increasing complexity. The autoflowering genetics simplify the growing process — no light schedule management, compact size, and a fast seed-to-harvest timeline. Indoor growers in any US state can run this strain with standard tent equipment. Outdoor growers should match the 8-10 weeks flowering period to their frost-free window.
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Jack Herer Auto — Lab-Verified Cannabinoid & Terpene Data
Independent third-party HPLC analysis. Total THC reported as max-potential (THC + 0.877 × THCA). Numbers reflect average across multiple batches; individual phenotypes may vary by 1-3 percent.
Jack Herer Auto — Real Grower Yield Reports
Yield data from US growers cultivating Jack Herer Auto autoflower seeds — submitted with batch codes, photos, and (where available) grower-purchased lab tests. First-time growers should expect 70-85 percent of these numbers.
| Setup | Yield |
|---|---|
| 4×4 tent, 600W LED, top + main-line | 265g |
| 4×4 tent, 600W LED, SCROG | 265g |
| 3×3 tent, 400W LED, single-cola | 264g |
Jack Herer Auto — Sourcing & Genetics
Jack Herer Auto comes from a respected West Coast breeder line known for its terpene-forward genetics and stable phenotype expression.
Versatile across all US climates — 8-10 week cycle works in any growing window from Maine to Hawaii.
Jack Herer Auto — Breeder Information
Royal King GeneticsBred and stabilized in-house by Royal King Genetics — our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read our full breeding process and about page.
Jack Herer is our F5 autoflower line. Five generations of selection have fixed both the autoflower trigger and the cross-derived trait balance the cultivar is known for. The recessive ruderalis trait requires this depth of work to express uniformly.
Stabilize the recessive ruderalis trait in Jack Herer for uniform auto-trigger.
Selected for balanced indica/sativa expression, terpene fidelity, and pack-to-pack uniformity.
Royal King Genetics breeding facility — pollen from internally selected sibling males of the recurrent parent.