What is nutgrass and how to get rid of it?

3 Minute(s) read

Nutgrass, scientifically known as Cyperus rotundus, is a persistent and invasive weed that can quickly overtake lawns and gardens, if left unchecked. Its tenacious nature and ability to spread rapidly make it a nuisance for gardeners and homeowners alike. This blog delves into what nutgrass is and provides insights into various methods to effectively eradicate it from your surroundings.

What is Nutgrass?

Nutgrass, often referred to as nutsedge, is not a grass at all but a perennial weed belonging to the sedge family. It thrives in warm climates and moist soil, making it a common sight in many regions worldwide. Nutgrass spreads through underground tubers, known as nutlets, which can persist in the soil for several years, sprouting new shoots when conditions are favourable.

Identifying Nutgrass

Nutgrass can be distinguished by its triangular stems, which are solid and erect, unlike the hollow stems of most grasses. The leaves are long, narrow, and arranged in sets of three at the base of the plant. Nutgrass also produces distinctive clusters of small, brownish flowers at the end of its stems.

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Methods to Eradicate Nutgrass

• Manual Removal: For small infestations, hand pulling nutgrass can be effective. Ensure to remove the entire plant, including the underground nutlets, to prevent regrowth. However, manual removal may not be practical for larger areas or extensive infestations.
• Chemical Control: Herbicides are commonly used to control nutgrass. Selective herbicides specifically formulated to target sedges can be effective in killing nutgrass while sparing desirable plants. We recommend Lawn Solutions Sedge Control which can be used for selective post-emergence control of Nutgrass and Mullumbimby Couch in turf. Can also be used for selective post-emergence control of Nutgrass.

Glyphosate-based herbicides, such as Roundup, are also effective but may damage surrounding lawn if not applied carefully.

• Natural Remedies: Several natural remedies can help control nutgrass without the use of synthetic chemicals. One method involves applying sugar to the soil surface, which encourages microbial activity that can degrade the nutlets and inhibit nutgrass growth. However, this method may take time to show results and may not completely eradicate the weed.
• Vinegar Solution: A solution of vinegar and water can be sprayed directly onto nutgrass to kill it. The acetic acid in vinegar disrupts the plant's cellular structure, leading to wilting and eventual death. While vinegar can be an effective natural herbicide, repeated applications may be necessary for complete eradication.
• Preventive Measures: To prevent nutgrass from establishing itself in your lawn or garden, maintain healthy turf by mowing regularly and watering deeply but infrequently to encourage deep root growth in grass. Additionally, mulching garden beds can help suppress nutgrass growth by blocking sunlight and inhibiting germination.

Nutgrass is a persistent weed that can be challenging to eradicate once established. However, by understanding its growth habits and employing a combination of manual, chemical, and natural control methods, you can effectively manage and eliminate nutgrass from your surroundings. Whether you opt for manual removal, chemical herbicides, or natural remedies, persistence and consistency are key to successfully getting rid of nutgrass and maintaining a healthy, weed-free landscape.

For further information on other weeds in your lawn and how to get rid of them jump onto our weed control page