The best time for lawn aeration is typically in the fall, when the grass is actively growing. This allows the soil to recover and the grass to fill in any holes or compacted areas before the winter dormancy period. Aerating in the spring can also be beneficial, but it's important to do it before the grass starts actively growing to avoid damaging the roots.
Aeration is an important maintenance task that helps improve soil health, water and nutrient absorption, and overall lawn health. It involves using a specialized aerator tool to punch small holes in the soil, allowing air, water, and nutrients to better penetrate the root zone. This can be done with a manual core aerator or a power aerator, depending on the size of your lawn.