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Short answer: yes. Although aeration is beneficial for most lawns and soil types, if it’s done too frequently, you can weaken the grass’s roots so much that they’ll begin to have trouble. Generally, most lawns can be aerated as infrequently as once every one to three years, although those with more foot traffic and compaction may benefit from aeration up to twice yearly.

Depending on the lawn treatments, the best times of the year to redo your lawn are between mid-August and mid-September for overseeding and renovation treatments. For areas such as the southern United States, lawn aeration works best during the fall, when the temperatures begin to drop. Otherwise, early spring is your next best bet because the grass is fresh and ready to absorb nutrients, and the temperature isn’t hot enough to fry the grass and the renovation materials.

Watering the lawn after aeration is crucial for getting the most benefits out of it. Not watering the lawn enough will cause the efforts of aeration to be in vain. Light and frequent watering will prevent the soil and grass seeds from drying out, but too much watering can create a muddy mess and wash the seeds away. Watering twice a day is a good benchmark.

Water your yard a little more deeply after a drought for about two weeks (while still avoiding overwatering). Continue to water in the early morning hours before 10 a.m. You'll also want to invest in some high-quality fertilizer to get more nutrients to your roots and help them grow back stronger and quicker. Look up your grass and soil type, or do a soil test, to see what type of fertilizer you need.