Sativa THC: 27.71% Jack Herer is prized sativa of Cannabis well known for both its cerebral high and its strong body high. The strain is a cross between Skunk #1, Haze, and Northern Lights. Jack Herer is named after the late hemp proponent and activist and author of The Emperor Wears No Clothes, a book helping to decriminalize cannabis. Energetic Happy Creative Focused Inspired