Chairmaker's Rush

About Chairmaker's Rush

Chairmaker's Rush, also known as Common Three-square, is a tough and adaptable wetland plant easily identified by its sharply triangular stems. Growing between 2 and 5 feet tall, this rhizomatous perennial is native to a wide range of habitats across North America, including both freshwater and brackish marshes, as well as sandy shorelines. Its common name stems from the historical use of its durable stems in weaving chair seats and baskets. Ecologically, it provides essential nesting material and cover for marsh-dwelling birds, while its seeds serve as a food source for various waterfowl. The plant's aggressive creeping root system makes it an exceptional choice for erosion control along banks and in areas with fluctuating water levels. It prefers full sun and wet conditions, though it is remarkably tolerant of varying soil types, including sandy or salty substrates. Because of its spreading nature, it is best utilized in larger restoration sites or contained areas where its vigorous growth can be appreciated for its functional benefits.