Its rich genetic background gives rise to several different variations of Jack Herer, each phenotype bearing its own unique features and effects. Leafly reviewers tell us that Jack Herer’s effects include feeling energetic, creative, and uplifted. However, consumers typically describe this 55% sativa hybrid as blissful, clear-headed, and creative. Jack Herer was created in the Netherlands in the mid-1990s, where it was later distributed by Dutch pharmacies as a recognized medical-grade strain. Since then, this spicy, pine-scented strain has taken home numerous awards for its quality and potency.