The Q&A Archives: Weeds

Question: Hi,

We have a lot of weeds in our lawn. One is Johnson Grass (we think). There is also another weed that has a woody stem, small leaves and spreads flat across the grass. It doesn't let the sun through and kills it in patches. What would you recommend we can do to get rid of these weeds and make our lawn healthier?

Thank You!!!

Answer: A healthy lawn will usually be thick enough to crowd out weeds so you'll want to follow a regular maintenance schedule which includes watering deeply once or twice a week during the growing season, mowing often enough to keep the grass blades at 2 1/2" and feeding 3-4 times a year with a 3-1-2 ratio of nitrogen, phosphorous and potassium. Feed in April, June, September and again in late November. Luckily, most garden centers offer the right fertilizer formula on sale at the right application times so watch the ads and purchase when they are. As for the weeds, without really knowing what they are, it's difficult to suggest a control method other than hand digging/pulling out the weeds. You might try taking a sample of the weeds to your local garden center or Master Gardener clinic for positive identification. Helpful folks there can also suggest a specific weed control strategy.

Best wishes with your lawn!

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