Swamp Flax (Harakeke)

Description

Swamp flax (Phormium tenax), or harakeke, is a restoration essential, perfect for wetlands, riparian zones, and erosion-prone areas. Tough, fast-growing, and packed with ecological benefits, it’s a must-have for bringing land back to life. The upright flowers are a favourite of our nectar loving birds and a classic in late spring and early summer. 

Erosion Control Expert: Deep roots stabilise wetlands, and slopes. 
Wildlife Magnet: Nectar-rich flowers attract tūī, bellbirds, and insects, while dense foliage shelters lizards and insects.
Tough & Versatile: Handles damp, drought, wind, and salt spray—thrives in even the harshest conditions.

How to Use It

• Plant in wetlands, but not too close to stream edges, and erosion-prone sites for soil stabilisation.
• Pair with carex, tī kōuka, and oioi for a resilient wetland planting.
• Practically self-sufficient— but keep the grass/weeds away till established.

Swamp flax is a big (up to 3x3m) hardworking, high-impact native that strengthens ecosystems and supports biodiversity. Plant it and let the land—and wildlife—flourish!

Availability