This species is from the southern states of Mexico. A columnar cactus, it is a tree in habitat and is distinguished by its massive gray-green, typically 4-5 angled (sometimes more). The flowers can occur at any time of the day and are large and white. We grow this species outside in Tucson, but it can take a lot more water than typically occurs without irrigation in our climate. These plants are seedlings in 4-inch pots.
