Purple Afghani is (most likely) a decently potent (THC levels reported as high as 20%), 75/25, Indica-Dominant, evening hybrid combination of Purple Kush and Afghani. While there may be other strains with the same name, this particular hash-y, earthy, blue cheese and woody hybrid will induce serious couch-lock and deep slumber but not before a prolonged look into the fridge.