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The Daily Insight

Is core aeration good for your lawn

Author

Rachel Hunter

Published Mar 21, 2026

Aeration is good for lawns, but it can stress grass if timed improperly. Never aerate dormant lawns. For cool-season grasses common in northern lawns, early fall or early spring are the best times for aerating. … Overly dry soil can be tough to aerate, so moisture eases the process.

How often should you core aerate your lawn?

How Frequently Should You Aerate Your Lawn? As for frequency, Friell said aeration should be performed at least once per year on most lawns. Lawns with compacted soil or soil with high clay content may benefit from aeration twice annually.

How long does it take for core aeration to work?

Explanation: Depending on weather, soil conditions, watering and mowing frequency, the cores will break down and disappear in about two weeks. This process will add nutrients to the lawn. Raking up the cores reduces aeration effectiveness.

Is aerating your lawn worth it?

Is lawn aeration necessary? Almost all lawns will benefit from aeration, and a great lawn demands it. That said, most lawns do not need it. Lawns suffering from heavy foot traffic, excessive thatch (>1 inch thick) or grown on heavy soils will benefit most.

Is coring good for your lawn?

Coring removes a significant amount of root thatch from the lawn, which together with the extra oxygen and free soil space, allows the lawn to reach down further into the soil profile leading to a healthier, more resilient and even more drought-tolerant lawn.

How Much Should lawn aeration cost?

Professional Lawn Care Aeration and Treatment The cost to aerate your lawn by hiring a lawn care company is about $15 to $17 per thousand square feet. The average lawn size is about ten thousand square feet, making the average aeration cost around $150.

What should I put on my lawn after aerating?

Apply fertilizer immediately after aerating your lawn to put nutrients into your grass roots. This allows the grass to better prepare for summer heat. Growing a thick, healthy lawn is useful in preventing weeds as well. Reseed your lawn, especially in areas of the lawn where the grass is thin.

Should I mow lawn before aerating?

Before you aerate, mow your lawn low (Timberline lawn experts recommend setting your mower to about 1.5-2 inches above the ground to maximize the effectiveness of aerating, being sure to not scalp the crown of the grass.) You will want to water one to three days before aerating.

Should I aerate or dethatch first?

Excess thatch blocks out air, light and water from reaching root zones. Dethatching and aeration services go hand in hand. Dethatch first, then aerate.

Can you seed after aerating?

Within 48 hours after you aerate you should over seed, fertilize, and water your lawn. The seed, fertilizer, and water will have the best chance to get down into the holes made by the aerator if applied soon after aeration. … If the fertilizer contains weed control, your grass seed won’t germinate properly.

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Should I fill aeration holes with sand?

When using sand after aeration, the sand fills the holes and helps change the soil structure, improving its drainage and increasing the growth of healthy grass. … This is a good option as long as you match your soil with what you’re adding, so they’re compatible.

Should I pick up plugs after aerating?

Those aeration plugs are vital to the health of your lawn. Resist the urge to “clean” the lawn after it’s been aerated, and whatever you do, don’t remove the plugs.

Is liquid aeration better than core aeration?

Core Aeration will have a more immediate impact on your soil and the look of your grass. But, the effects are not very long lasting. The Liquid Aeration will have a less immediate impact on your soil, but the effects are longer lasting and cumulative, so your result gets better over time.

What are the benefits of coring?

Coring relieves compaction, as the small holes allow water, oxygen and nutrients to instantly flood into the root zone. Causes water to run off the lawn, wasting a valuable resource. Restricts the flow of nutrients in the soil and the effectiveness of fertilisers and wetting agents.

Should I top dress after coring?

On new lawns top dressing is generally not required, but can be done to fill in any gaps or holes. … Occasionally after a settling period some areas of a new lawn may need a slight correction to desired levels. Fertilise a few weeks prior to top dressing to ensure maximum growth at the time.

How deep should you core your lawn?

You want it to be 1–2cm deep across the lawn and down near the roots, not covering the lawn.

Should I water grass after aeration?

Watering Your Lawn After Aeration You should not water the day of because your lawn won’t have time to absorb the water. The goal after aeration is to keep your lawn moist without oversaturating the soil. … Be sure not to overwater, as this can cause the soil to shift, potentially negating your hard work!

Can you walk on grass after aeration?

You can’t walk on the lawn after aeration because the seeds and fertilizer need time to settle, and the soil could get too compact. Walking or mowing on a freshly-aerated lawn can prevent the seeds from sprouting and the soil from getting enough oxygen and nutrients.

Should you water lawn after aeration?

During the first two weeks following your aeration and seeding service, the main goal is to keep the ground/seed moist while the seed begins to germinate. We recommend that you water each day for at least 20 minutes in all areas of the lawn (water the soil to a depth of about 1/4”).

What does core aeration do?

Core aeration is a mechanical process, which extracts cores of soil, thatch and grass from the surface of the lawn to increase nutrient availability, water penetration, soil air exchange and reduce compaction. This improves the effectiveness of your TruGreen services and ongoing watering, leading to a healthier lawn.

Does TruGreen aerate?

Fall is the perfect time to aerate your lawn to ensure your beautiful lawn is in tip top shape for next spring. Schedule your aeration service today with TruGreen®. So, you’ve decided to aerate your lawn – go you! Fall is actually the perfect time to schedule this service.

Is TruGreen any good?

Overall, we give TruGreen a score of 97 out of 100. We believe it’s the best lawn care company in the industry.

Can you aerate and seed in the spring?

Spring Aeration and Seeding If you’re looking to aerate your landscape in the spring, the best time would be between March and May. While we recommend aerating your lawn in the fall, spring core aeration may be beneficial if your turf is so compacted it refuses to grow.

Can you overseed before aeration?

The best time to aerate your lawn is during the fall before you begin a fertilization program or decide to overseed. … Aeration will help ensure your soil is ready to absorb all of the nutrients and seeds that come its way with topdressing and overseeding.

Can you power rake After aerating?

Aeration, or core removal, performed up to twice a year may be necessary to combat the compaction process. You should not rake the lawn after aeration unless you are breaking down the removed cores.

Should I fertilize before or after aeration?

In most cases, aerating is best before laying fertilizer as it allows for more oxygen and deeper growth of grass roots. If you have compact soil or clay soil, it is especially crucial to aerate before so that the fertilizer reaches deeper roots.

How do I prepare for core aeration?

Preparing for Aeration Aerating your lawn begins by preparing the area. Ideally, you should water the lawn at least a day or two before aeration; you should add at least one inch of water to the soil to make it easier for the aerator to penetrate the soil and pull out the cores.

How long do aeration holes last?

While aeration itself can take just a couple of hours, depending on the size of your commercial property, plugs typically break down in about two weeks.

How do I Dethatch my lawn?

Dethatching is the easy option because it is accomplished simply by using a rake. Push the rake tines deeply down through the grass, so that they reach the thatch layer that lies beneath. If you have a cool-season grass, you can be dethatching your lawn at the same time as you rake it for other reasons.

Should you top dress after aeration?

Top dressing is a good idea, especially if you have areas that have eroded or sunken over the last year. … After aerating, it’s time for top dressing: spread either pulverized top soil or a good quality humus compost across the lawn. You don’t need much—about a quarter inch or so is adequate. Then, go ahead and reseed.

What is the best starter fertilizer for grass?

  • Scotts Turf Builder Starter Food for New Grass (4.9 / 5 rating)
  • GreenView 2131254 Starter Fertilizer (4.8 / 5 rating)
  • Jonathan Green Green Up Seeding & Sodding Lawn Fertilizer (4.8 / 5 rating)
  • Lesco Professional Starter Fertilizer, 18-24-12 (4.7 / 5 rating)