Sedges
Pūrei
Giant Sedge
Giant Sedge (Carex secta) is one of New Zealand's most important wetland plants and is commonly found growing along stream edges, wetlands and damp ground.
Its dense root systems help stabilise streambanks, reduce erosion and filter sediment and nutrients from runoff before they enter waterways. The large tussocks also provide valuable habitat for native insects, fish and wetland birds.
Giant Sedge forms the backbone of many riparian restoration projects and is ideally suited to wetlands, stream margins and low-lying areas prone to periodic flooding.
While not generally suited to dry garden settings, it performs exceptionally well around ponds, swales and damp areas on local properties.
Giant Sedge ready for planting
Upright Sedge
Upright Sedge (Carex virgata) is a hardy native sedge that thrives in damp soils and stream margins.
Its fine, dense foliage helps slow water movement, trap sediment and improve water quality while providing shelter and habitat for native wildlife. It is particularly useful in lower, wetter areas where it can tolerate periodic flooding.
Together with Giant Sedge, it forms an important first line of defence for streambank protection and freshwater restoration and is particularly valuable in riparian and wetland environments.
It is also well suited to rain gardens, ponds and damp areas in Waikawa Beach gardens.
Upright Sedge being planted in the wetland.
Photo kindly provided by Michele Walls