NORTHERN LIGHTS #5 X SHIVA SKUNK Its rich genetic background gives rise to several different variations of Jack, each phenotype bearing its own unique features and effects. 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. Effects: Focused, energetic, creative Aroma: Pine, woody, earthy