Scirpus cyperinus, commonly known as Woolgrass, is a tall perennial bulrush recognized for its distinctive, woolly seed heads that emerge in late summer. This species typically grows to a height of 3 to 5 feet and is commonly found in wet meadows, marshes, and along the edges of ponds.

Woolgrass thrives in full sun to partial shade and prefers wet to saturated soils, making it ideal for rain gardens, wetlands, and riparian projects. It can tolerate seasonal flooding, and its dense root system helps stabilize soil and prevent erosion. Cold stratification for 30 to 60 days improves seed germination.

Woolgrass plays a key role in wetland ecosystems by providing cover for birds and producing seeds that serve as food for waterfowl. It is essential for wetland restoration and conservation, supporting biodiversity and maintaining healthy ecosystems.