Core aeration helps the lawn’s health and vigor, and reduces maintenance requirements. The following are other benefits of core aeration:
Annual aeration is beneficial for all lawns. Lawns growing on heavy clay or subsoil, and lawns exposed to intense use, benefit from two or more aerations each year.
Spring and fall are ideal times to aerate. We generally recommend aerating in the fall, after the stress of summer. Aeration, in combination with fertilization, enhances root growth and improves spring green-up.
Overseeding at the time of Aeration is a great way to thicken up a thin lawn or introduce better grass types to a lawn. The rule of thumb is that weeds will grow where there is no grass. So a thick lawn results in less weeds and is not as susceptible to diseases.
Simply spreading grass seed over a lawn will give results but not as effective when in accordance with aeration. By aerating first, the soil is cultivated, greatly improving the results. The majority of the new grass will grow in the aeration holes.