Genus: New Zealand flax Phormium Photo/Illustration: Michelle Gervais New Zealand flax (Phormium) FORM-ee-um Agavaceae The genus Phormium contains a couple of species of perennials from New Zealand that are grown for their large clumps of strap-like leaves and spikes of small, tubular flowers on leafless stems. Many cultivars have colorful or variegated foliage, ranging from green to red to bronze-purple. They are a strong structural presence in the garden. Grow as a border specimen, in containers, or in a coastal garden. Noteworthy characteristics: Large, evergreen leaves and architectural flower stalks. Care: Grow in full sun in fertile, moist but well-drained soil. Plants may be overwintered in a cold greenhouse or mulched heavily if left out in winter where not hardy. Propagation: Divide plants or sow seed at 55° to 64°F in spring. Problems: Generally trouble-free, but leaf spots sometimes affect plants. Species, varieties and clutivars for genus Phormium 1 2 3 4 5 6 7 8 9 10 11 'Amazing Red' New Zealand Flax Phormium 'Amazing Red' 1 2 3 4 5 6 7 8 9 10 11 New Zealand flax Phormium tenax View the discussion thread.