J1, also called Jack One or Jack 1, is a sativa-dominant hybrid created by crossing Jack Herer and Skunk #1, though some sources suggest a cross with "The One," an older strain. It has a 70% sativa and 30% indica ratio, making it energizing and ideal for daytime use. The strain has been cultivated since at least 2011 and has won awards, including first place for Sativa Flower at the 2017 High Times World Cup.
