Nutsedge, also known as nutgrass, seeks out the moist, poorly drained sections of your yard. Its leaves are grass-like and yellow-green, while the spiky head is purple or yellow. It's a tough weed to control because it grows from tiny tubers, or nutlets, that form on roots and can grow 8-14 inches deep in the soil. Getting rid of this weed can be accomplished but it requires diligence and patience on the part of the gardener. Learn more from this article from SFGATE.
https://homeguides.sfgate.com/kill-nutsedges-vegetable-garden-40243.html
