Soil compaction is a perennial problem that is responsible for many lawn care challenges. Diseases, weeds, fertilizer issues and droughts are often blamed when lawns lose their color, but the real problem could be soil compaction. Core aeration is one of the best things you can do for your lawn. This process uses a large machine that extracts long plugs of soil and turf. Ideally, you should aerate your lawn once a year but, once every other year is good too. By doing this process you can create a healthy, thicker lawn. Aeration also helps remove the layer of thatch that accumulates just above the soil line. Here’s why lawn aeration is so important.