What is Crabgrass Preventer?

by Lee Wyatt
(last updated January 4, 2021)

If you have a lawn, then at least once in your life you have come across crabgrass, and know just how much trouble this creeping grass can be. In addition, you also know just how quickly it can go from being a grass to being a weed. While there are several ways that you can go about getting rid of crabgrass, are there any methods available for keeping it from showing up at all? The short answer to that question is yes; it is done with the help of something called crabgrass preventer. But what is crabgrass preventer? Keep reading to find out what it is, what effects it possesses, as well as when to apply it.

  • What is it? In the simplest possible terms, crabgrass preventer is exactly what it sounds like...a material that is used to prevent the growth of crabgrass. It will not kill any crabgrass that is already growing, but it will help prevent any new crabgrass from growing. Generally this type of application will come in either a liquid or solid form. The solid form is usually a grain, almost sand-like in appearance that you can simply spread on your grass to aid in preventing the growth of crabgrass. Another way to look at crabgrass preventer is that it is a pre-emergent preventer/herbicide, and can usually be found in the most nurseries across the country.
  • What are its effects? The effects of the preventer is simple, it will prevent the seeds from germinating properly. By preventing the seeds from germinating, this will in turn keep the crabgrass from growing at all. Be careful about how you apply this though, since it will prevent crabgrass from germinating, it will also prevent any new seeds from germinating as well. This means that you do not apply it to areas that you have just applied fresh grass seed to.
  • When to apply it. The ideal time to apply crabgrass preventer is in the early spring before the temperature rises too much. Typically the best time to do this is when the temperature of the soil at night will be about 50 degrees Fahrenheit for about three days in a row. When the forecast calls for this, it's time to break out the preventer.
  • How to apply the preventer. Read the directions on the back of the package of the preventer that you have purchased, and make sure that you are familiar with them. Make sure that you don't over apply the preventer, and that you are following the manufacturer's directions closely to avoid misuse.

Author Bio

Lee Wyatt

Contributor of numerous Tips.Net articles, Lee Wyatt is quickly becoming a regular "Jack of all trades." He is currently an independent contractor specializing in writing and editing. Contact him today for all of your writing and editing needs! Click here to contact. ...


Cornbread Stuffing

When having poultry for dinner, is there really a better side dish to have than stuffing? Cornbread stuffing can be one ...

Discover More

Understanding Social Security Benefits

There is almost always something on the news or radio these days about Social Security, and the benefits that you can get ...

Discover More

Areas Affected by Killer Bees

If you have watched the news at all over the past several years then the chances are pretty good that you have at least ...

Discover More
More Gardening Tips

Killing Dandelions without Killing Your Grass

While dandelions may be a favorite of children, they aren't exactly all that good for your grass. Unfortunately, if the ...

Discover More

Getting Rid of Unwanted Plants

Arguably one of the most annoying things that you could see in your garden is some plants growing that you don't want ...

Discover More

Getting Rid of Morning Glory

While some people absolutely love the look and smell of Morning Glory, there are just as many people who view it as an ...

Discover More

FREE SERVICE: Receive an e-mail several times each week with a featured gardening tip. Enter your address and click "Subscribe."


If you would like to add an image to your comment (not an avatar, but an image to help in making the point of your comment), include the characters [{fig}] in your comment text. You’ll be prompted to upload your image when you submit the comment. Maximum image size is 6Mpixels. Images larger than 600px wide or 1000px tall will be reduced. Up to three images may be included in a comment. All images are subject to review. Commenting privileges may be curtailed if inappropriate images are posted.

What is one less than 4?

There are currently no comments for this tip. (Be the first to leave your comment—just use the simple form above!)


FREE SERVICE: Receive an e-mail several times each week with a featured gardening tip. Enter your address and click "Subscribe."

(Your e-mail address is not shared with anyone, ever.)