Mow the lawn short
Water the lawn lightly one to two days before aerating
Mark sprinkler heads, utility lines, and other obstacles
Choose a core aerator for best results
Aerate when the soil is moist but not soggy
Make one to two passes over the lawn
Focus on compacted areas and high-traffic spots
Leave the soil plugs on the lawn
Water the lawn after aerating
Overseed if needed
Fertilize if appropriate for the season
Avoid heavy foot traffic for a few days
Aerate cool-season grass in early fall or spring
Aerate warm-season grass in late spring or early summer
Repeat aeration once a year or as needed