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 headfocused effects of its Sour Diesel mother plant Bred by Karma Genetics Headbangers 10 to 12 week flowering period requires patience but promises high yields Its uplifting and euphoric qualities make Headbanger a potent medicine for mood disorders particularly depression