As soon as the soils warms in Spring, it’s a good time to have your lawn aerated. Aeration, which is better for your lawn then thatch raking, will reduce soil compaction and to improve nutrient and moisture delivery.
Lawns will also benefit from more oxygen to the grasses’ root system.
If thatch in your lawn is thicker than ½ inch, core aerate with a mechanical aerator. This will improve the health and vitality of the lawn.
Leave plugs on top and break them up with a mower.
Originally published on May 8th, 2012. Updated on September 4th, 2019.