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Treat Nutsedge Now: Learn How to Mow, Kill, and Remove It! (2023)

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Nutsedge is an invasive weed that can quickly take over lawns and gardens, ruining the appearance of a healthy landscape. The good news is, there are ways to treat it. We’ll explore how to identify nutsedge, and the various methods of treating it. Mowing high, using herbicides, or removing by hand. We’ll also discuss preventative measures one should take to control its growth. So you can have a beautiful garden, free from unwanted weeds.

What is Nutsedge?

how to treat nutsedge
You may be asking yourself, What is this pesky weed taking over my lawn? Well, that’s Nutsedge – a troublesome and fast-spreading invader that can quickly ruin your beautiful lawn! It belongs to the genus Cyperus which contains over 600 species of nutgrass. Reproducing via seed, rhizomes or underground tubers makes it notoriously hard to control.

The two most problematic types are yellow and purple nutsedge. Yellow has light straw colored leaves, while purple has darker ones. They thrive in wet soil with poor drainage.

Mowing frequently, top-dressing, or regrading can help improve soil quality and drainage conditions before attempting organic control methods. These include manual removal of individual plants, or natural remedies such as cover crops.

Chemical herbicide use can be necessary too. Readily available products like Bonide Sedge Ender should be used carefully, following directions on the label. Exercise caution when using glyphosate-based herbicides around children or pets, due to their toxicity levels.

With correct usage guidelines followed diligently, you’ll soon achieve a lush grass-like lawn free from weeds!

Identifying Nutsedge

Identifying Nutsedge
Identifying nutsedge can be tricky, but it’s important to know the difference between yellow and purple nutsedge in order to effectively control them. Nutrient sources, soil prep, regional variations, beneficial insects and mulch types all play a role in keeping your lawn healthy, so weeds like nutsedge don’t have an advantage.

Yellow Nutsedge has light-colored leaves with one tuber per rhizome, while Purple Nutsedge has darker leaves with football-shaped tubers connected together on each rhizome. This is considered more problematic for weed control.

Achieving a weed-free lawn takes hard work. Turf selection based on proper height and proper mowing practices are key. Identifying the various types of weeds present, including nutsedges, lets you know what type of killer ready-to-spray herbicide will be best suited for controlling them quickly, without damaging your grass or other plants nearby.

Treating Nutsedge

Treating Nutsedge
Mowing high is the best first step to treating nutsedge in your lawn. It weakens the plant’s root system and reduces spread.

Killing nutsedge with herbicides or removing them by hand are two other effective methods.

Chemical treatments may also be used outside of your lawn to prevent further spread from surrounding areas like ditches or roadsides, where they may grow more vigorously than in turfgrass areas.

Mow High to Help Control Nutsedge

Mow high and wide to help keep nutsedge from taking over your lawn, like an army of tiny invaders being held back by a mighty fortress. To control this pesky weed, apply herbicides or biological controls, mulch, test the soil and apply fertilizer.

Mow high. Set the blade on the highest setting for cool weather, but lower if it’s hot to get a complete kill.

Follow these tips and you’ll have success controlling nutsedge in no time!

Kill Nutsedge in Your Lawn

Take control of your lawn by killing nutsedge with the right approach! Weed proofing, landscape planning and using natural or organic solutions can help prevent an infestation.

If you’ve noticed pesky weeds, applying lawn herbicides like glyphosate-based Ortho or Tenacity is effective. Test soil first, and read labels for directions on dosage and application methods.

For stubborn cases, halosulfuron or sulfentrazone are great options, but require multiple applications over several weeks.

Soil testing will help determine if mowing high, topdressing with composted material and mulching heavily around existing landscaping beds could help kill off the roots while improving drainage conditions.

This will help keep your grass healthy and green, without damaging beneficial plants nearby.

Kill Nutsedge Outside Your Lawn

Take control of your outdoor space by eliminating nutsedge quickly and easily! Determine which sections of your yard are most affected and use weeding tools like a hoe or trowel to dig up the tiny tubers. Prepare the soil with proper drainage practices such as aeration or top-dressing with compost for better quality lawns. Fertilizer alternatives can also be used in moist soil that is prone to nutsedge growth, but these options may take longer than chemical methods.

Herbicides such as Ortho Weed B Gon MAX plus Crabgrass Control are effective in controlling yellow and purple nutsedge, but only use them after reading all instructions carefully.

If you prefer natural solutions, try hand-pulling any visible plants while wearing gloves and disposing away from the garden site immediately to prevent them from spreading further underground via their rhizomes or seed production.

Prevention is always the best form of control when dealing with this pesky weed. Monitor moisture levels regularly to stop it from getting out of hand again.

Remove Nutsedge by Hand

Gain control of your yard and remove pesky nutsedge by hand for a quick, organic solution. Wear gloves so you don’t get any unwanted souvenirs! To identify this super weed & grass, look for its V-shaped stem.

Mulch to manage the growth. Amend the soil with compost or top dressing.

Herbicides can be an option, but do a spot test first to make sure it won’t damage other species of lawn grasses or vegetation. If using herbicides, be sure to apply them liberally over larger areas.

Water management is important too. Don’t overwater your lawn, as moist soils will attract more seeds and encourage rapid reproduction from underground tubers that spread quickly.

Preventing Nutsedge

Preventing Nutsedge
Take action now to protect your lawn from pesky nutsedge and keep it looking lush and green! Natural predators such as birds or beetles can help reduce a nutsedge infestation.

Creating nutrient deficiencies by limiting nitrogen-rich fertilizer inputs will make the soil less suitable for growth. Improving soil quality with composts is also an effective way of preventing nutgrass spread.

Ensure proper drainage through regrading or topdressing that increases water limitation in the area. Weed barriers are useful when planted beneath mulch to prevent weeds from growing up into the desired plants. But they must be installed correctly for maximum effectiveness against nutsedge growth.

Herbicides may still be necessary if natural methods don’t work. But before using any herbicide, always read labels carefully and test on small areas for toxicity levels before doing a full application across larger areas of grasses or soils where children play often or animals roam freely.

Frequently Asked Questions (FAQs)

How long does it take to get rid of nutsedge?

Getting rid of nutsedge can be daunting. But understanding the process and taking preventative measures can help you achieve a weed-free lawn. Aerate, soil test, mulch and apply a weed barrier or organic control to your lawn’s surface to kill any existing grassy weeds with spiky heads.

Nutsedge flourishes in moist soils, so make sure your soil is dry enough before attempting treatment. This might require spending money on an irrigation system if needed.

Once the area has been cleared out, carefully remove each single tuber from rhizomes using gloves for protection and dispose of them properly. Burn or bury them away from the property line, as they’re capable of reproducing quickly.

How long does it take to get rid of nutsedge? It depends on the size of the area, and how much effort you put into preventative measures. But with the right steps, you can be weed-free in no time.

Are there any organic methods for controlling nutsedge?

As an organic gardener, you may be interested in controlling nutsedge without the use of chemical herbicides. One key strategy is to improve soil quality by aerating turf and filling holes with compost. Additionally, applying a pre-emergent herbicide like Bonide Sedge Ender or corn gluten meal can help prevent nutsedge seeds from germinating and crowding out desirable plants.

Mulching strategies such as covering soil with fabric and adjusting watering schedules are also recommended for preventing the spread of these weeds. Composting techniques can further improve drainage in areas where there’s poor moisture retention, making them less hospitable for new infestations of nutsedge growths!

You can also try organic methods for controlling nutsedge. Aerate turf and fill holes with compost to improve soil quality. Apply pre-emergent herbicides like Bonide Sedge Ender or corn gluten meal. Mulch with fabric and adjust watering schedules. Compost to improve drainage in areas with poor moisture retention.

Are there any natural predators for nutsedge?

Nutsedge is every homeowner’s worst nightmare. But there are natural predators to help keep this nuisance at bay. Beneficial insects like beetles and mites feed on the leaves of the plant. Mulching strategies such as pruning benefits and soil management can also help limit its growth.

Organic solutions for controlling nutsedge include applying corn gluten meal to lawns in springtime with highest settings, or using beneficial nematodes that attack weed seeds including those of the troublesome nutsedge plant.

For more info about how these natural predators work together for good defense against weeds like Nutsedges, contact Cardinal Lawns today for a free estimate!

How often should I mow my lawn to prevent nutsedge?

Mowing your lawn regularly is one of the best forms of weed prevention. It’s a general rule that you should mow your lawn at least once every seven to ten days, unless it rains or gets too dry.

A good mulching strategy can prevent weeds from taking over, while proper fertilizer use and soil drainage will make it harder for them to grow in the first place.

Give your grass adequate sunlight exposure and irrigation timing so all plants have enough resources to thrive—not just nutsedge!

Keep an eye out for tough weeds like nutsedge growing on the edges of sidewalks or near trees; these are often different types than what grows in most parts of a lawn.

Pay special attention when inspecting your soil type; if there’s poor quality clay present, more weeds may sprout up easily due to lack of nutrients available in the soil.

Are there any fertilizers that can help prevent nutsedge growth?

Are you looking for the best way to keep pesky nutsedge weeds from taking over your lawn? Fertilizers can be a great help in preventing growth. Organic methods are always preferred, but there’s also herbicide options for southern turf grasses and landscape beds. The exact herbicide type depends on the severity of infestation, so it’s important to research what will work best for your area.

If using fertilizer types as prevention is more appealing to you, then look into soil amendments like compost or corn gluten meal that can help provide nutrients while crowding out nutgrass seeds before germination even begins!

Overall, keeping an eye on cultural practices such as mowing frequently and avoiding overwatering is truly the best thing you could do when trying to prevent nutsedge growth.


Mowing, aeration, soil amendment, and herbicide application are the steps to take control of your lawn and eliminate nutsedge. It’s like barring the door to an intruder. With a bit of effort and dedication, you can have a beautiful, weed-free lawn that’ll make your neighbors jealous. Proper care is like planting a garden of success. So, don’t let nutsedge stop you from having the perfect lawn.

Avatar for Mutasim Sweileh

Mutasim Sweileh

Mutasim is a published author and software engineer and agriculture expert from the US. To date, he has helped thousands of people make their yards lush and thick.