Granddaddy Purple is an indica marijuana strain that goes by many different names, including "Grand Daddy Purp," "Granddaddy Purps," "GDP," and "Grandaddy Purple Kush." Popularized in 2003 by Ken Estes, Granddaddy Purple (or GDP) is a famous indica cross of Mendo Purps, Skunk, and Afghanistan. Other people claim it is Big Bud x Purple Urkle. Either way, this California staple inherits a complex grape and berry aroma from its Purps and Ghani heritage. GDP flowers bloom in shades of deep purple, a contrasting backdrop for its snow-like dusting of white crystal resin. Its potent effects are clearly detectable in both mind and body, delivering a fusion of cerebral euphoria and physical relaxation.