Granddaddy Purple strain (or GDP) is a famous indica-dominant strain that is a cross between Purple Urkle and Big Bud. It is known for delivering a nice fusion of cerebral euphoria and physical relaxation, which is comparable to a strong and natural sedative. This particular strain is not ideal as a pick-me-up for your morning wake and bake session. However, it is a great selection if you are looking to relax in the evening and get a good nights sleep.