"Headbanger, a winner of the 2013 Amsterdam Cannabis Cup, is a sativa dominant hybrid cross between Sour Diesel and Biker Kush. This strain inherits a dense, conic bud structure from its Kush forefathers, as well as the sour aroma and head-focused effects of its Sour Diesel mother plant. Bred by Karma Genetics, Headbanger’s 10 to 12 week flowering period requires patience but promises high yields." - Leafly.com