Garden Display Plant Guide

Botanical Name

Phormium tenax

Common Name

Black Adder New Zealand Flax

Black Adder New Zealand Flax

A dramatic perennial forming clumps of strappy, evergreen leaves in dark burgundy.

  • USDA Zone: Zones 8 – 11
  • Sunset Zone: Zones 7 – 9, 14 – 24; H1, H2
  • Mature Height: 3 – 4 feet
  • Mature Width: 3 – 4 feet
  • Light Needs: Full Sun, Filtered Sun, Partial Sun
  • Water Needs: Moderate, RegularM
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