The lawn aerator is a mounted device that does not require insertion into the lawn. By installing a lawn aerator at the beginning of the season, you will see results by the beginning of June. An aerator is how you can replace a lumpy and marshy lawn with a smooth and soft one with natural grass. Walking across the lawn, its sole seems to leave behind traces, which are successfully replaced by a dense brush in the dew. This brush makes the surface not only smooth but also saturated with the lawn’s nutrients.