Carex brongniartii, commonly known as Muhlenberg’s Sedge, is a perennial herb native to open woodlands and grasslands in South America. It typically grows to a height of 1-3 feet (0.3-0.9 meters) and can spread to about 3 feet (0.9 meters) wide. This sedge forms dense clumps of narrow, arching green leaves, which add texture to garden compositions. It is not particularly known for its flowers, as they are small and not showy, but it does produce brownish spikelets that may add visual interest in the summer.

Muhlenberg’s Sedge is valued for its ability to form attractive ground cover and for its adaptability to a range of soil conditions, though it prefers moist, well-drained soils. It is often used in rain gardens, as a border plant, or for naturalizing areas. This sedge thrives in full sun to part shade and requires consistent moisture to look its best. It is relatively low maintenance, but it may need division every few years to rejuvenate and control its spread. While generally disease-free, it can suffer from rust or root rot in poorly drained soils.CC BY-SA 4.0