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The Daily Insight

Will grass choke out weeds?

Author

John Thompson

Published May 21, 2026

Will grass choke out weeds?

Abundant, vigorous grass overpowers weeds and denies them the nutrients they need to grow. Not only will proper watering choke out existing weeds, but it will also prevent weeds from growing in the future. See our list of lawn watering tips for advice on keeping your lawn properly quenched.

What type of grass chokes out weeds?

Zoysia
Zoysia is an extremely aggressive spreading grass that can literally choke out weeds.

Will healthy grass choke out weeds?

You cannot smother weeds with a new grass establishment, whether from seed, sprigs or sod, since both species will compete for soil resources. Grass clippings spread on weeds as a mulch, however, may curb weed seeds from germinating.

Should I overseed or kill weeds first?

The weeds should be killed first. Any weeds and poor looking grass around the lawn should be killed before any seeds are planted. After the grass and weeds have turned brown it is time to rake it out and remove all the debris around the area.

How to get rid of weeds in your lawn?

Eliminate weeds in your lawn and prevent them from coming back. We show you six strategies that simplify lawn weed control and maintain healthy grass. Complete DIY projects like a pro! Sign up for our newsletter! Mow your grass when it needs it; one-third above the ideal cutting height.

What kind of weed control can I use on my lawn?

When dealing with a single clover plant or a small patch, spot-treat with Scotts® Spot Weed Control for Lawns. See it. Also known as pennywort, dollarweed has round leaves with wavy edges and white flowers in the summer. It tends to grow in warmer regions in moist, shady lawns and in bare spots. Treat it.

What’s the best way to get rid of grass?

Annual grassy weeds like crab grass reseed themselves near the end of the growing season and then die. The seeds germinate the following spring to grow new plants. Spot-treat the weeds with a small, trigger-controlled, pump-up pressure sprayer.

What’s the best weed control for St Augustine lawn?

If you have a St. Augustine or Centipede lawn, use Scotts® Turf Builder® Southern Triple Action or Scotts® Bonus® S Southern Weed and Feed 2. Spot-spray a few dandelions with Scotts® Spot Weed Control for Lawns, which kills dandelions without harming grass.

What should I use to control weeds in my lawn?

When choosing weed-control products, take into consideration your target weeds, whether they’re still seeds or emerged plants, and the type of lawn grass you grow. Different types of weeds call for different controls, and some Southern lawn grasses, such as St. Augustinegrass and Centipedegrass, are sensitive to some weed-control products.

What’s the best weed killer to get rid of grass?

Pennington UltraGreen Weed & Feed 30-0-4 and Pennington UltraGreen Southern Weed & Feed 34-0-4, both safe on Centipedegrass and St. Augustinegrass lawns, kill and suppress tough existing broadleaf weeds and control new weeds for up to three months in established lawns.

What happens if you leave weeds on your lawn?

Left unabated, weeds will take over your lawn, suffocate your plants, and make your lawn appear patchy, thin, and ugly. I often find myself wishing that turf grass was as tough and resilient as lawn weeds. But I guess if it was easy to maintain a perfect lawn, everyone would do it.

What kind of weeds are in my yard?

Seed bare spots in the lawn in spring or fall to prevent purslane from gaining a foothold in these areas. A perennial weed, field bindweed is one of the lawn weeds that is tough and difficult to eradicate. It has arrowhead-shaped leaves and flowers resembling small morning glories.