Granddaddy Purple, also known as “Grand Daddy Purp,” “Granddaddy Purps,” “GDP,” and “Granddaddy Purple Kush,” is an indica marijuana strain. Granddaddy Purple (also known as GDP), a well-known indica cross of Mendo Purps, Skunk, and Afghanistan, was made popular by Ken Estes in 2003. While passing on Skunk’s huge, compact bud form, this California mainstay receives a complex Mendo Purps and Afghanistan scent. Deep purple GDP flower blooms provide a striking contrast to the resin’s snow-like white coating. Its powerful effects, which combine cerebral exhilaration and physical relaxation, are readily apparent in the mind and body.