What Should You Do After Aerating Your Lawn?

Written by Mike Futia

Updated January 17, 2023

  • After aerating your lawn, you'll want to water it to help moisten up the soil.
  • You'll also want to fertilize the lawn after aerating, which will help your lawn recover from the aeration process.
  • Then, you should seed your lawn, which will help fill in any bare spots after aerating.
  • Finally, you should mow your lawn after aeration, which will encourage the grass to promote new growth.

I recently aerated my lawn. Here are the steps I took once I was finished aerating. 

Water The Lawn

aeration

Watering the lawn after aeration is an important step in helping the lawn recover and promoting healthy growth. 

Aeration creates small holes in the soil, which allows water, oxygen, and nutrients to reach the roots of the grass more easily. However, if the soil is too dry, the grass roots can become stressed and may not recover as quickly.

In terms of the ideal amount of water to use, we recommend watering the lawn deeply and infrequently.

This means that you should water the lawn enough so that the water reaches the roots, but not so much that it causes runoff or puddling. A good rule of thumb is to apply about 1 inch of water per week, either through rainfall or irrigation.

The best time of day to water the lawn after you aerate is early in the morning, before the heat of the day sets in. Watering in the morning allows the grass to dry off before evening, reducing the risk of disease.

Additionally, watering in the morning allows the grass to take up the water before the sun evaporates it. Avoid watering in the evening as it can lead to fungal growth.

After you aerate, you should avoid heavy foot traffic on your lawn for a few days, to allow the grass to recover.

Fertilize The Lawn

fertilizer

Applying fertilizer after aeration

Fertilizing the lawn after aeration can have many benefits, including promoting root growth and helping the lawn recover from the aeration process. The holes created during aeration allow fertilizer to reach the roots of the grass more easily, which can help to strengthen and nourish them.

There are a few types of fertilizers that are particularly well-suited for use after aeration.

One is a slow-release fertilizer, which releases nutrients into the soil over a longer period of time. This can be especially beneficial for helping the lawn recover from aeration, as it provides a steady supply of nutrients to the roots.

Another good choice is a fertilizer with a high percentage of phosphorus, as it encourages root growth.

The ideal application rate for fertilizer after aeration will depend on the type of fertilizer you are using and the condition of your lawn. Just be sure to follow the manufacturer's recommendations on the package.

In general, you should apply fertilizer to a damp lawn, either after watering or after a light rain. This will help to ensure that the fertilizer is absorbed by the soil and reaches the roots of the grass.

Just note that fertilizing too frequently or with too high a concentration can lead to fertilizer burn, which can damage the lawn. 

Seed The Lawn

seed

Seeding the lawn

Seeding the lawn after aeration can be a great way to fill in bare spots and thickening the lawn.

Aeration creates small holes in the soil, which can make it easier for seed to reach the soil and establish roots. Additionally, the holes allow water, oxygen, and nutrients to reach the roots more easily, which can help the new grass seed to grow and establish itself.

When it comes to choosing the best types of seed to use after aeration, it's best to choose a seed mix that is well-suited to your specific climate and soil conditions.

Some popular choices for lawns include Kentucky bluegrass, perennial ryegrass, and fine fescue. You can also choose a seed mix that is specifically designed for overseeding an established lawn.

The ideal application rate for seed will depend on the type of seed you are using and the condition of your lawn. It's best to follow the manufacturer's recommendations on the package. It is generally recommended to use about 3-5 pounds of seed per 1,000 square feet of lawn.

Keep in mind that that after seeding the lawn, you should keep the soil consistently moist until the seed germinates and the seedlings have established roots. You can do this by watering the lawn lightly and frequently.

You should also avoid heavy foot traffic on your lawn for a few days after seeding, to allow the new seedlings to establish roots. Also, you should avoid mowing for about a week after seeding to give the new seedlings a chance to grow.

Mow The Lawn

aeration

Mowing the lawn after aeration can be beneficial for helping the lawn recover from the aeration process.

When you mow the lawn, you are removing the leaf blades of the grass, which encourages the grass to produce new growth. This can help to thicken the lawn and promote healthy growth.

When it comes to the ideal mowing height after aeration, we recommend keeping the grass at a taller height, around 2-3 inches. This will help to shade the soil, which can help to reduce moisture loss and keep the soil cooler. Additionally, taller grass has deeper roots, which can help the lawn to better withstand heat and drought.

In terms of mowing frequency, you should mow your lawn regularly, but not too frequently. Mowing too frequently can stress the lawn and prevent it from recovering from the aeration process.

You should wait for at least a week after aeration before mowing the lawn, and then to mow it at the recommended height. As the lawn recovers, you can gradually lower the mowing height, but avoid cutting more than 1/3 of the leaf blade at a time.

It's also important to note that mowing with a sharp blade is important for the health of your lawn, as dull blades can cause a ragged cut and stress the grass.

By the way, if you're wondering what to do with those plugs after you're done aerating, you can just leave them there.

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Mike Futia


My name is Mike, and I'm the owner and founder of NerdLawn.com. My lawn care advice has been featured on Family Handyman, Home & Gardens, Gardening Etc., and Apartment Therapy. I love nothing more than helping my readers achieve their dream lawns. That's why I started NerdLawn.com, where I share all of my best tips and tricks for keeping a lawn healthy and well-maintained. You can read more about our mission on our About Page.

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