Aeration is a naturally occurring process of air exchange between the soil and surrounding atmosphere. Practically speaking, aeration is the process of mechanically removing small plugs of thatch and soil from the lawn to improve natural soil aeration. It’s commonly called “core aeration” in the lawn service industry.

Immediately following aeration, your lawn will be dotted with small plugs pulled from the soil. Within a week or two, these plugs of thatch and soil break apart and disappear into the lawn.

Soon after aeration, the aeration holes will begin to fill with white, actively growing roots. This is a sign that the turf grass is responding to additional oxygen, moisture, and nutrients in the soil.

There is no question that aeration is the most beneficial thing you can do for your lawn.