The Master Gardener Articles

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Do You Have Moss in Your Lawn?

During the warm days of January and early February, there were reports of moss in lawns around the county. As the soils warm in early spring, moss will again become active. When growth is active, this is the best time to remove it from your lawn. Moss is a shallow rooted plant growing only ½ to 1 inch tall, forming a green mat which will smother out your grass. The moss spreads by producing capsules containing spores which are spread by wind, water and traffic. These spores germinate and form a plant-like structure.

In most cases moss will not invade a vigorous, healthy lawn. The presence of moss could indicate low fertility, heavy shade or poor soil drainage (wet damp areas).

Germination of spores can be prevented by using a pre-emergent herbicide in the fall (late October or early November). Once the moss is established, use a post-emergent product in the early spring. Visit your local garden center or hardware store for product suggestions. For more information contact George McVey at gmcvey@ag.osu.edu or call the Union County Extension Office at 937.644.8117.