This Rockstar Strain is amazing. Rockstar, a cross between Rockbud and Sensi Star, is a potent indica-dominant hybrid that delivers strong effects without debilitating sedation. With aromatic notes of spice and grape, Rockstar is a favorite medicine for headaches, pain, and sleep disorders. Its powerful body and cerebral effects make Rockstar popular among growers, who typically harvest their outdoor plants in mid-October.