Kush refers to a subset of strains of Cannabis indica. The origins of Kush Cannabis are from landrace plants mainly in Afghanistan, Northern Pakistan and North-Western India with the name coming from the Hindu Kush mountain range. "Hindu Kush" strains of Cannabis were taken to the United States in the mid-to-late 1970s and continue to be available there to the present day.

Kush strains were among those cultivated by the British firm GW Pharmaceuticals for its legally licensed commercial trial of medicinal cannabis.

OG Kush is a cross between Lemon Thai and Chemdawg and Old World Paki Kush. It is a 55/45 Indica dominant hybrid strain also known as Original Gangster and Ocean Grown. It was created in Los Angeles and is one of the most popular strains from Southern California. With proper care, OG Kush’s THC levels can reach 20%. The plants take 8–9 weeks to flower indoors. OG Kush buds smell of pine, earth and spices