6-12' tall x 3-6 ' wide. Yucca faxoniana is a tree yucca from the deserts of West TX. This fantastically ornamental succulent has proven growable into the Denver area, far beyond its native range. Eventually growing to huge size, often with multiple heads, this is the most cold hardy giants of the genus. Watered regularly during the heat of summer, the plant will begin to size up after a decade of growth. Plant West Texas Tree Yucca where it will receive the maximum amount of heat to speed its growth.