Flax (Phormium tenax) is a bold, architectural plant known for its large, upright fans of sword-shaped leaves that grow in dramatic, arching clumps. The foliage is typically green but can range into striking shades of bronze, red, or variegated patterns depending on the variety. In the warmer months, tall flower stalks rise above the foliage bearing tubular, red or yellow blooms. Also known as New Zealand flax, this plant is native to New Zealand and Norfolk Island, where it naturally inhabits coastal regions, wetlands, and open grasslands.

Flax is renowned for its strong fibers, traditionally used by the Māori people for weaving ropes, textiles, and baskets. In ornamental landscapes, it is celebrated for its structural form, drought tolerance, and ability to withstand strong winds and poor soils. Its dramatic silhouette makes it a popular choice for contemporary gardens, coastal plantings, and architectural landscapes seeking bold texture and year-round interest.