Rhumba Rooibos Chai In the South African Cederberg Mountains near Cape town, the herb Rooibos (Red Bush) is grown. Known as an effective aid in insomnia, chock full of minerals and antioxidants, this tea makes house calls. We added cardamom, anise, cinnamon, and cloves to render the flavor irresistible. Add steamed milk and zzzzzzz.