Nut grass is a weed grass native to Eurasia that spreads and multiplies by seed and creeping runners. Its blades are thin and wispy. The grass grows in areas of a lawn where the established turf is thin or bare. Fortunately, it is possible to remove nut grass without resorting to the use of toxic herbicides.
Build up your turf to make it thicker and more lush. Nut grass grows in lawns that are sparse, and tends to return after it is removed if the lawn is still sparse. Use an eco-friendly fertilizer, such as dry molasses, to feed and improve the health of your lawn.
Pull up sprigs of nut grass that are long enough to grasp. Pull gently but firmly to ensure that you pull up the entire root. Roots that remain in the soil will regenerate into new nut grass sprigs.
Fill a spray bottle with a white vinegar and acid concentration of 5-9%. Set the spray bottle's nozzle to the stream setting.
Spray hard-to-remove sprigs or patches of nut grass with the white vinegar mix. Get as close as possible to the nut grass to avoid spraying and killing the turf grass. Completely saturate the nut grass.
Repeat the spray application of white vinegar until the nut grass dies back. Pull up the dead nut grass.
Apply dry molasses to the nut grass-free areas to encourage the growth of new turf. Water the grass regularly to keep it healthy and full.