Green Crack seeds has been a leading strain in fighting A.D.D. for many people around the world. This strain does a number of amazing benefits such as stimulate a appetite for those with out one. Another fantastic thing green crack seeds do for people is grow them a large yield. Yields can be any where from 200 - 300 grams per plant that is amazing for this potent strain. The THC content of this plant is really high around 24% THC.