Cordyline australis 'Purple Tower'
(Giant dracaena, New Zealand cabbage palm)
'Purple Tower' is a cultivar of the New Zealand native cabbage tree, frequently grown in greenhouses, as houseplants, or as large accent plants outdoors. It is hardy to Zone 10. The narrow, plum-purple leaves reach 3 feet long. The fragrant white flowers are small, but they are borne in large panicles in spring and early summer on mature plants. Plants grown in containers only rarely flower, however. Young plants are often sold as houseplants. Mature specimens have thick trunks with foliage at the top, resembling a palm tree. They are striking container specimens and can be plugged into a summer border. The species has naturalized in portions of California and the southern U.S.