Purple Sour Diesel is a potent sativa-dominant strain with the genetic makeup of an inbred Sour Diesel sativa and an indica known as SR71 Purple Kush – itself a blend of original Hindu Kush and Purple Afghani. With a sativa/indica ratio of 70:30, it delivers a major energy boost with a heavy dose of euphoria and creativity. The high is intensely cerebral, with more limited body effects, though the strain is quite relaxing physically. THC levels reach as high as 21% in this strain, putting it in the top tier of powerful strains.