Introduced in 2003 by Ken Estes, Granddaddy Purple (or GDP) is a famous indica cross between Purple Urkle and Big Bud.Its potent effects are clearly detectable in both mind and body, delivering a fusion of cerebral euphoria and physical relaxation. While your thoughts may float in a dreamy buzz, your body is more likely to find itself fixed in one spot for the duration of GDP’s effects. Like most heavy indica varieties, Granddaddy Purple is typically pulled off the shelf for consumers looking to combat pain, stress, insomnia, appetite loss, and muscle spasms.