The Q&A Archives: Lawn

Question: Our yard is very acidic, due to many trees surrounding our home and the amount of rainfall we have experienced this season. We limed the yard in early spring. However, our soil is turning green; we have lots of mushrooms popping up, -- and moss is growing in many places where we want grass. Should we lime it again this fall? --Or possibly, even now?

Answer: Moss thrives when conditions favor its growth. Too much shade, compacted soil, poor fertility, poor drainage, and low pH all contribute to moss in lawns. If you can correct all (or most) of these problems, you'll have less moss in the lawn. I'd dethatch, then rake up all the dead stolons along with the moss. Reseed any bare areas. Then put your lawn on a regular feeding schedule, mow frequently, and water as needed. These steps will help the grass grow lush and thick enough to crowd out any moss. We recommend fertilizing in April, June, September, and the first week of December with a 3-1-2 ratio of complete fertilizer (21-7-14 is a good choice). You may want to have the soil tested because it is likely your soil pH is too low. If that proves true, you'll be advised to add lime. Fall is the best time add lime, but anytime is okay. Following the above guidelines for a healthy lawn should greatly reduce the amount of moss - and mushrooms you find in your yard.

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