Green Rooibos comes from the same plant as the popular "Rooibos" (aka Red Bush, Red Rooibos). It is actually nothing else than the un-oxidized (unfermented) form of Red Rooibos. 

Our South African Green Rooibos tea is handpicked in the summer, and then immediately allowed to dry without exposing it to the sun. Green Rooibos has increased effectiveness of Red Rooibos’ therapeutic properties due to the elimination of oxidization, thus boosting the levels of flavanoids and anti-oxidants.