Saint Augustine Grass and Herbicides Do Not Mix

by Stephanie Suesan Smith on April 29, 2011

Many people want to know how to kill various weeds in their lawn. If the lawn is Bermuda grass, you can use a product containing 2,4,D to kill all the broad leaf weeds in the lawn. Most of the weed and fertilizer type products contain this herbicide.

If, however, you have Saint Augustine grass, you are out of luck. Anything that will kill the broad leaf plants will kill the Saint Augustine. I saw a very clear example of this during my recent trip to see my parents. We were driving through a residential neighborhood filled with nice homes. House after house had a lush lawn. Suddenly, there was a house where every blade of grass was deader than a doornail. It was obvious they had liberally applied a weed and fertilizer product to their Saint Augustine lawn. I so wanted to take a picture, but because it was someone’s house, did not.

Do not let your lawn be a bad example. Stay away from herbicides if you have a Saint Augustine lawn. Instead, fertilize it appropriately, water it an inch a week, and mow frequently. Weeds do not like frequent mowing. The fertilizer and water will help the grass grow and choke out the weeds.

Gardenbookfrontcoverthumbnail For more help gardening, buy my book, Preparing A Vegetable Garden From The Ground Up
Available in print or ebook from or other retailers, this book walks you from choosing the site of your garden all the way through what to do after the harvest. Buy a copy for yourself or a friend today!

{ 3 comments… read them below or add one }

Edgar April 30, 2011 at 5:20 am

I always tell people to stay away from Herbicides as much as they can as there is always a harmless solution to every situation. Thanks for the info
Edgar recently posted..3 easy tips that will increase your website trafficMy Profile


Stephanie Suesan Smith April 30, 2011 at 6:39 am

I practice, and teach, Integrated Pest Management. I believe that some situations require pesticides or herbicides. Ants in the wiring, invasive plants choking the pasture, and similar situations require immediate attention and extermination. “Harmless” solutions do not kill the problem organism. However, it is important to kill only the problem, and not everything else.


grace April 30, 2011 at 9:54 am

Wow, this is a very good tip for those who are planning to have a nice and beautiful St. Augustine lawn! Thanks for your advice, I learned another thing today. 🙂


Leave a Comment

CommentLuv badge

This blog uses premium CommentLuv which allows you to put your keywords with your name if you have had 0 approved comments. Use your real name and then @ your keywords (maximum of 3)

Previous post:

Next post: