Crabgrass Begone

With a ton of rain, very high humidity, and hot temperatures, weeds are having a veritable field day this summer. For those of us who love a beautiful lawn, crabgrass is enemy number one and it’s loving every bit of the weird and wild weather we are having.

Crabgrass is just like other weeds in that it likes to take over. Once crabgrass gets its roots down, it spreads quickly, killing healthy grass in its path. Of course, crabgrass dies on its own when it starts to turn cold, but not treating it means it’s more likely to come back. Here’s what you can do today to get rid of it and keep it from ruining your lawn next year. 

The best course of action for crabgrass is a pre-emergent, but that’s only good in the spring before the crabgrass starts to grow, so if you missed it, it looks like you’ll be pulling by hand. That’s right, get out that kneepad because the best way to remove any weed is to pull it out, ensuring the roots come with it. The recent rain should have loosened those roots up a bit so now is as good a time as any.

Once you have the crabgrass out, you can fill in the bare spots with healthy grass seed and plenty of water. It’s important to wait to reseed if you’ve recently sprayed your lawn with weed killer. Water is also key here because the heat does make it tough for grass to grow. 

Now for your mowing. It’s best to keep the grass a bit longer and to let the clippings stay in place to give some nutrients and shade back into the lawn. Three inches is a good, healthy length for both old and new grass.  

If you’re looking for a chemical solution, you can use a post-emergent, but this can be tricky as the wrong product will kill your grass. When in doubt, it’s best to leave this job to a professional landscaper who can advise you on the most appropriate course of action. You don’t want to accidentally burn your whole lawn while trying to save it. 

Don’t forget, treating your lawn with a pre-emergent in the spring is the best way to avoid crabgrass in the first place. Crabgrass starts to germinate when the soil reaches 55 degrees, so it’s a good idea to get out there in April to ensure that your hard work is worth the effort.

Bob O’Donnell is the owner of O’Donnell Bros. Inc., a Bristol-based home improvement company established in 1975. Email your questions for Bob to info@odonnellbros.com with the subject line “Ask the Pro.” All questions may be considered for publication. To contact Bob for your remodeling needs, call O’Donnell Bros. Inc. at (860) 589-5155 or visit http://www.odonnellbros.com. Advice is for guidance only.