Why timing matters
Core aeration pulls small plugs of soil to loosen compaction so air, water and fertilizer reach the roots. Grass recovers fastest when it's in its main growing season, which depends on the type.
Signs your lawn needs it
- Water puddles or runs off instead of soaking in
- Heavy foot traffic, kids or pets
- Thin grass or bare spots
- A screwdriver is hard to push into moist soil
- Thatch thicker than about half an inch
Get the most from it
- Water a day or two before so the soil is moist.
- Mark sprinkler heads and shallow lines first.
- Leave the soil plugs on the lawn to break down.
- Overseed and fertilize right after on cool-season lawns.