This plant thrives in full sun in a well-drained soil with little irrigation and has been shown to be hardy to around 20° F, with some noting that it is hardy down to 10° F.

The neotype specimen used by Howard Scott Gentry to describe this plant in 1963 for his book Agaves of Continental North America was a plant in cultivation at the Huntington Botanic Garden. Gentry noted that when John Baker first described this plant in 1888, he did so from a plant growing at the Royal Horticultural Gardens at Kew which had been obtained from De Smet, a Dutch plant trader, in 1879. Gentry speculated that if the plant were of hybrid origin that he would suspect it a cross between Agave lechuguilla and Agave victoriae-reginae and in his description of it included a statement from the noted succulent expert Charlie Glass, who was at that time the co-editor of the Cactus and Succulent Society Journal, agreeing with this hypothesis and noting that if this were the case that he thought it might be from the north edge of Laguna de la Viesca, where a dwarf form of Agave victoriae-reginae and Agave lechuguilla were both collected. Later treatment is that it is the result of a cross between Agave asperrima. (previously known as A. scabra) and Agave nickelsiae (previously known as A. ferdinandi-regis).

Agave pumila is sometimes listed as Agave x pumila and is most often sold as a collector curiosity in its juvenile form as a potted specimen but it is also an attractive agave as it matures and should be tried more often in the ground in Southern California. Old clusters of this plant are sometimes sold as 'Clusterfest', but it our experience that that the normal form will often cluster, particularly after the center of main plant has damaged (or cored) as often is done for propagation, so these multiple rosette plants should not be given a separate cultivar name. Our plants from vegetative propagation of plants originally received from Stockton plant collector Alice Waidhofer in 2004. 

The information about Agave x pumila displayed on this web page is based on our research conducted in the nursery's horticultural library and from reliable online resources. We also include observations made about it as it grows in our nursery gardens and other gardens we have visited, as well how the crops have performed in containers in our nursery field. We will also incorporate comments we receive from others and welcome hearing from anyone with additional information, particularly if they can share cultural information that would aid others in growing this plant.