Granddaddy Purple, also known as “Grand Daddy Purp,” “Granddaddy Purps,” “GDP,” or “Grandaddy Purple Kush,” is an indica marijuana strain. It was popularized in 2003 by Ken Estes and is a famous cross of Mendo Purps, Skunk, and Afghanistan. Some people claim it is a cross of Big Bud and Purple Urkle. This California staple has a complex grape and berry aroma inherited from its Purps and Ghani heritage. The flowers of GDP bloom in deep shades of purple, creating a stark contrast with its snow-like dusting of white crystal resin. It has potent effects on both the mind and body, delivering a mix of cerebral euphoria and physical relaxation. While it may create a dreamy buzz in your thoughts, your body is likely to feel fixed in one spot for the duration of its effects.