Apple Jack is a sativa-dominant hybrid created by crossing the famed Jack Herer sativa with White Widow, an equally notorious hybrid. The result is fairly potent, with THC levels that can top 20%. The exact balance of sativa to indica is unknown, but sativa makes up at least 70% of its genes. Even so, Apple Jack delivers a mix of head and body effects, with a calming physical buzz and a euphoric cerebral sensation.