Blackwater is a cross strain between Mendo Purps and San Fernando Valley OG Kush. When inhaling this flower, the effects begin smoothly but will gradually go through the entire body that ends up with a top to bottom euphoric high. Medical Marijuana users rely on this strain to help alleviate symptoms associated with appetite loss, chronic pain, and multiple sclerosis. It is recommended for this strain to be ingested later in the evening as it can cause mental fogginess and a slowdown in productivity.