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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.

Experts typically recommend aerating your lawn about once per year, but your aeration frequency will depend on your soil type, lawn condition, and other factors. For instance, you should aerate annually if you have clay-heavy soil or frequent foot traffic in your backyard. However, if your soil is loose or sandy and you don't use your yard often, you can probably aerate every other year.

Yes, you should water the lawn after aerating. Now that you’ve loosened up the soil to better receive nutrients, it’s time to hydrate and fertilize your lawn. You’ll want to keep it evenly moist to promote healthy growth. Don’t drown your grass—too much of a good thing can reverse all the work you’ve done with aeration in the first place. But especially if you’ve overseeded and/or fertilized after aeration, you’ll want to ensure a moist soil layer to absorb those nutrients and fuel for new growth.

Yes, you can overseed your lawn without aerating it, but results may vary. If you have the time, dethatching or aerating your lawn before overseeding will yield the best results. Overseeding your lawn without aerating will work, but less seed will take root. For the best possible results, aerate your lawn before overseeding it.