How do I control moss?

To control moss, you have to consider the reasons why it began to grow on your lawn.  Moss is an opportunistic plant that typically thrives in areas that are shady, moist, have poor drainage and acid soil. 

The first step in controlling moss is to test the soil for nutrient content and pH.  Soil test kits are available at your local garden center.  If the soil is deficient in nutrients or needs lime, the soil test report will indicate how much fertilizer and lime to apply.  You can obtain the soil test report from you local County Cooperative Extension Office. 

The long-term solution to moss is to improve the drainage in the lawn.  If you have poor surface drainage, you should aerate it well- walk around in cleats for a while or rent an aerator from your local home improvement store. 

If shade or moisture limits good turf growth, it is suggested to remove some trees or tree branches to increase sunlight and air circulation.  Also, lawns that are mowed too low are weakened and are very inviting to moss.  It is best not to mow most lawns any shorter than 2-3 inches in height. 

There are also chemical controls you can buy, but you should remember that moss will return if the problem is not rectified.

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