The outstanding feature of Carex grayi is the unique seed head, which looks like a starburst or spiked club. The greenish yellow to brown fruits remain on the plant in winter. Grass-like lime-green leaves are semi-evergreen. This sedge gradually forms colonies from short underground rhizomes. Under suitable conditions, this sedge may self-seed.
Gray sedge grows best in moist, fertile soil in full sun but will tolerate light shade. It thrives at or near water and tolerates seasonal flooding. The inflated seed heads allow it to float on and thus disperse via water.
Height: 2-3 ft.
Spread: 1.5-2 ft.
Bloom time: May to October
Sun: full sun to part shade
Water: medium to wet
According to Rutgers University, Carex are “rarely damaged” by deer.
“Sedges have edges, rushes are round, grasses are hollow, straight to the ground.”