Blackberry Kush is a cross between Blackberry and OG Kush, both of which are well-respected strains in their own right. Blackberry won the 2000 Cannabis Cup for Best Indica. This strain can be traced all the way back to the late 1970s when the famous American breeder DJ Short was working with a variety of landrace strains. Blackberry has storied history thanks to its cultivation and presence in a variety of different seed banks. It’s famous for its blueberry flavor, high THC potency, and relaxing effects.