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The frequency of lawn aeration depends on factors such as soil type, grass variety, and lawn usage. In general, it is recommended to aerate cool-season grasses like Kentucky bluegrass or fescue once a year during the fall. On the other hand, warm-season grasses such as Bermuda or zoysia benefit from aeration in late spring or early summer. However, it's essential to assess your lawn's specific needs, as signs of compaction and reduced grass health may indicate the need for aeration outside these general guidelines.

Overseeding after aeration is not always necessary, but it can be highly beneficial, especially for lawns with thin or patchy areas. Aeration creates an optimal environment for new grass seed germination by improving soil contact and reducing competition from thatch. If you aim to thicken your lawn, address bare spots, or introduce a new grass variety, overseeding immediately after aeration can help rejuvenate and enhance your lawn's overall health and appearance. However, whether you overseed or not depends on your specific lawn goals and condition.

Common tools include spike aerators and core aerators. Professionals often use motorized equipment for efficiency.

You should put pre-emergent herbicide and fertilizer on your lawn in the spring. Pre-emergent herbicide keeps weeds from taking root. Fertilizer helps your grass to grow lush and dense and blocks future weeds from growing. You can also add amendments, such as sulfur and lime, to enhance your soil quality.