Nutsedge, also called nutgrass, is a hard-to-kill perennial weed. Nutsedge reproduces by underground stems, seeds, and tubers. The tubers, the size of popcorn kernels, sprout in late spring and early summer. The plant tops die back in the fall, leaving new tubers in the soil to repeat the cycle the following year. The tubers and underground stems are firmly anchored in the ground. In the summer, this weed grows more rapidly than the grass and stands above the turf.
Nutsedge is difficult to control. When a plant is pulled up, some of the tubers and underground stems are left behind to resprout into new plants.
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