In the summer, this weed grows more rapidly than the grass and stands above the turf. The erect, single, triangular stem has narrow, grasslike, yellow-green leaves arranged in threes from the base of the plant. Seed heads are yellow brown. Nutsedge, also called nutgrass, is a hard-to-kill perennial weed that also reproduces by underground stems and tubers. When a plant is pulled up, some of the tubers and underground stems are left behind to resprout into new plants.
Nutsedge is difficult to control. When the weeds have died after treatment, reseed the dead areas.
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