How to Use Borax on a Lawn to Kill Creeping Charlie


Gardeners have used Borax to kill creeping charlie in lawns for decades. The secret to Borax's effectiveness is its active ingredient, boron. Boron is actually a plant micronutrient found in trace amounts in most soils. When it is present in large amounts, it kills plants. However, you can eradicate creeping charlie and keep your grass alive because it takes a slightly higher amount of boron to kill turf grass than it does to kill creeping Charlie. The solution used in these steps makes enough Borax weed killer to treat 1,000 square feet of your lawn.

Step 1

Add 1/2 cup of warm water to 1-1/4 cups of Borax in a small plastic container. Stir until the Borax is completely dissolved.

Step 2

Fill a bucket with 2-1/2 gallons of water. Add the Borax solution. Stir until the Borax is completely dissolved.

Step 3

Pour the diluted Borax solution into your hose-end sprayer.

Step 4

Spray the contents of the hose-end sprayer evenly over 1,000 square feet of lawn.

Step 5

Refill the sprayer and reapply to your lawn. Repeat until all of the diluted Borax solution has been sprayed on the lawn.

Tips and Warnings

  • Borax accumulates in a lawn. You can only treat the lawn with Borax once a year for two years. After that, you should switch to a standard herbicide.

Things You'll Need

  • Borax
  • Water
  • Small plastic container
  • Bucket
  • Hose-end sprayer


  • Iowa State University Extension: Borax on Ground Ivy
  • University of Minnesota: Creeping Charlie
  • University of Minnesota: Using Borax to Control Creeping Charlie
Keywords: kill creeping charlie, Borax on lawns, Borax on weeds

About this Author

Emma Gin is a freelance writer who specializes in green, healthy and smart living. She is currently working on developing a weight-loss website that focuses on community and re-education. Gin is also working on a collection of short stories, because she knows what they say about idle hands.