Kush Cannabis is a subset of Cannabis Indica. Kush has an incredibly varied range of strains that originate from landrace plants which are mainly grown in Afghanistan and sometimes in Iran, Pakistan and Northern India. Its name comes from the Hindu Kush mountain range which is situated between Pakistan and Afghanistan. However Kush strains were first cultivated by the British company 'GW Pharmaceuticals' for commercial trial of medicinal cannabis. Kush is a potent strain of Cannabis producing desirable and long lasting psychoactive effects and best grown outdoors in warm climates.