Afghan Kush, originating from the Hindu Kush mountain range where it’s genetics were tweaked and perfected over the centuries to produce one of the best hash making strains to date.Afghan Kush is a popular marijuana strain with a THC level up to 15%. Afghan Kush tastes very medicinal and has dramatic effects on pain relief. Narcotic feeling in nature Afghan Kush is popular for patients looking to relieve pain, stress, insomnia and nausea.