Crabgrass, named for its crab-leg like stems, might be one of the worst lawn nightmares for a homeowner. The weed loves hot, dry conditions and roots far down into the soil. It will die out in the fall, only to germinate and grow a new crop of weeds the following spring. Getting rid of this pesky weed can take some time and effort. Here’s what you can do to get crabgrass under control:

1. Pull clumps out by hand, using a weeding tool that’s specially made for crabgrass. The tool has a claw on it that digs down deep under the weed, pulling it out by its roots. Just be sure you get the entire clump, or you’ll be dealing with it again come spring.

2. Don’t give your grass a close cut. Aim to leave grass blades about three inches high when you mow, and leave grass clippings behind. This will help shade and add nutrients to your soil, and crabgrass doesn’t like healthy soil.

3. Don’t let bare or thin spots develop in your yard. Apply a good fertilizer so your lawn will be lush, keeping crabgrass from moving in and making itself at home.

4. Give your lawn a good drink. Watering deeply will help ensure healthy grass roots, which won’t leave room for crabgrass to creep in.

5. Use a pre-emergent herbicide. The herbicide should be applied when your soil temperature is above 50 degrees Fahrenheit for a few days — a good way to tell is when you see spring flowers and trees blooming. A pre-emergent herbicide will stop crabgrass from growing before it starts. 

6. If you've already spotted crabgrass in your lawn, use a post-emergent herbicide. Be sure the herbicide is made for crabgrass and is a spot application, not a broad application. A broad application herbicide could kill your grass or other plants.


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