Organ pipe is native to parts of southern Arizona and Mexico. It is more common in tropical deciduous forests and the desert is a marginal habitat. This cactus produces small, juicy fruits relished by birds and many other animals. The pinkish flowers appear throughout the summer and are visited by bats in their native habitat. Nectar-feeding bats are not usually found in the Phoenix area, so bees are the primary pollinators of organ pipe cactus in residential landscapes.