Carex flava, commonly known as Yellow Sedge, is an evergreen perennial grass native to a variety of wetland habitats including bogs, marshes, wet meadows, and moist woodland areas across North America, Europe, and parts of Asia. It typically grows to a height of 0.3 feet (0.09 meters) and can spread to about 2 feet (0.6 meters). This sedge forms dense clumps of narrow, grass-like leaves and produces small, yellow-green flowers in late spring to early summer, which are not particularly showy but add a subtle charm to the plant’s overall appearance.

Yellow Sedge is valued for its ability to thrive in wet conditions and is often used in rain gardens, water features, and as a ground cover in damp, shady areas. It is also a suitable choice for erosion control on moist banks. In cultivation, it requires consistent moisture and can tolerate a range of soil types, though it prefers those with medium drainage. It is adaptable to both full sun and part shade, making it versatile for various garden settings. While generally low-maintenance, it can spread vigorously and may need to be managed to prevent unwanted colonization of adjacent areas.CC BY-SA 4.0