Giant dracaena Cordyline australis 'Purple Tower' Photo/Illustration: Michelle Gervais Photo/Illustration: Michelle Gervais 1 2 3 4 5 6 7 8 9 10 11 Giant dracaena (Cordyline australis 'Purple Tower') kor-dih-LYE-nee oss-TRAL-iss Synonyms: Dracaena australis Genus: Cordyline '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. Noteworthy Characteristics: Long, narrow foliage in an unusual purple color. Great accent plant. Care: Needs well-drained, fertile soil in full sun or partial shade. If grown indoors, provide bright filtered or indirect light and moderate water during the growing season. Propagation: Sow seed at 61°F in spring. Remove well-rooted suckers in spring. Problems: Scale insects, spider mites, and mealybugs are common, while bacterial and fungal spots, bacterial soft rot, and root rot can occur. Overview Height 15 ft. to 30 ft. Spread 6 ft. to 10 ft. Growth Habit Clumps Growth Pace Moderate Grower Light Full Sun to Part Shade Moisture Medium Moisture Maintenance Moderate Characteristics Showy Flowers, Showy Foliage, Showy Fruit Bloom Time Summer Flower Color White Flower Foliage Color Colorful/Burgundy Foliage Uses Beds and Borders, Indoor Plant, Specimen Plant/Focal Point Seasonal Interest Summer Interest Type Trees Related Plants to Cordyline australis 'Purple Tower' 1 2 3 4 5 6 7 8 9 10 11 Omeo gum Eucalyptus neglecta 1 2 3 4 5 6 7 8 9 10 11 Wollemi pine Wollemia nobilis 1 2 3 4 5 6 7 8 9 10 11 Mescal bean Sophora secundiflora 1 2 3 4 5 6 7 8 9 10 11 Fiddle-leaf fig Ficus lyrata View the discussion thread.