4-8′ tall x 3-5′ wide. Unique and other-worldly, this compact form of the fabled Joshua Tree is cold hardy and slow growing. But patience is rewarded as the plants sprout spiny arms from the main trunk, and the plant blooms with congested spikes of ivory flowers. Yucca brevifolia v. jaegeriana (Compact Joshua Tree Yucca) is a very hard-to-find variety of this fabled desert tree.