Jack Herer
Breeder: Sensi Seeds (Ben Dronkers)
Named after the legendary cannabis activist and author of The Emperor Wears No Clothes, Jack Herer holds the all-time record of 14 Cannabis Cup wins. Released in 1994, it was approved as a recognized medical-grade strain by Dutch pharmacies — a rare distinction. Ben Dronkers has publicly stated it is his all-time favorite strain. Jack Herer is one of very few widely available strains where terpinolene is the dominant terpene.
Lineage & Genetics
Cross: Haze x Northern Lights #5 x Skunk #1
Initial crosses were made by Neville Schoenmakers. Seedfinder lists (Northern Lights #5 x Haze C) x (Skunk #1 x Haze C). NL5 is Purest Indica x Hawaiian. Skunk #1 is (Afghanistan x Colombia) x Mexico. Haze C is from the original Haze Brothers line. Four distinct phenotypes are recognized, from indica-dominant (Pheno-B, under 60 days) to sativa-dominant (Pheno-A, up to 13 weeks).
Terpene Profile
Terpinolene — Herbal, woody, slightly floral; 30–40% of total terpenes
Caryophyllene — Peppery, spicy warmth
Pinene — Sharp pine and resin
Aroma: Pine, spice, and earth with sweet woody undertones. Some phenotypes express more citrus or lemon-incense.
Flavor: Earthy pine with spicy pepper on inhale, woody sweet exhale. Lingering herbal-incense aftertaste.
Effects & Experience
Onset: Rapid. Cerebral effects arrive within minutes.
Focused, energetic, creative. Widely regarded as a 'functional' sativa that sharpens focus rather than producing couch-lock. A stratospheric cerebral high underpinned by a body buzz.
Duration: 2–3 hours
Commonly Reported Uses
Growing Characteristics
Grow Tips: Four phenotypes with distinct growth patterns. Topping, LST, and SCROG strongly recommended. Dense buds on sativa phenos can be susceptible to mold in high humidity.
History & Origin
Developed by Sensi Seeds in the Netherlands, with initial crosses by Neville Schoenmakers. Launched in 1994 at The Cannabis Castle in the presence of Jack Herer himself. Won 1st place at the 1994 High Times Cannabis Cup in its debut year.
Awards & Recognition
- ●14 Cannabis Cup/competition wins — the all-time record
- ●1994: 1st Place — High Times Cannabis Cup (debut year)
- ●1999: 1st Place, Sativa — High Times Cannabis Cup
- ●Multiple Highlife Cup wins (2003–2016)
Notable Crosses
Strains bred using Jack Herer as a parent:
Want to Grow Jack Herer?
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