What is Core Aeration?
Simply put, it is making finger-sized holes in your lawn and depositing the removed material on the surface to break down. This allows fertilizer, water, and oxygen to reach the roots, where healthy grass originates.
Is core aerating effective in improving all species of turf grass?
Yes, both cool-season (e.g., Kentucky bluegrass) and warm-season (e.g., Bermuda grass) grasses can be greatly improved.
How do I know if a yard needs aeration?
Known clay soils, heavy traffic, more than 1/2″ of thatch, standing water after irrigation or rain, or lawns that brown easily in heat are all excellent candidates. Any yard, whether healthy or not, can benefit from annual aeration.
Will spiking do the same thing?
No. Spiking will put holes in the turf, but it will compact the soil rather than remove the core. While there are often short-term benefits, in the long term, this is counterproductive.
When should aeration be scheduled?
Cool-season grasses such as bluegrass, bentgrass, ryegrass, fine-leaf, and tall fescue, spring (March-May) and fall (August-November) are best. For warm-season grasses such as Bermuda, buffalo, and St. Augustine, late spring and summer after spring green-up (May-July) are preferred.
How often should a lawn be aerated?
Compaction and thatch buildup are more prevalent in areas with a high clay content, and aeration should be done at least once a year. In areas with more sandy or loamy soils, annual aeration will result in continued healthy lawns and improved irrigation and fertilizing efficiency.
When will positive results be seen in the lawn?
Depending on the turf conditions, visual results may or may not be immediate from a single aeration. Subterranean root growth, overall health, and stress tolerance will, however, begin to improve almost at once. Even in the toughest conditions, aeration in combination with an appropriate fertilizing, irrigation, and weed control program will show dramatic visual results in the second or third year after a second or third aeration.
Will aeration make the grass grow faster?
Yes. Healthy grass will grow faster and thicker. If you are unwilling to mow lush green grass, aeration, fertilizing and watering are counterproductive.
Is aeration a one-time fix that can be discontinued when the lawn has improved?
No. Aeration must be an ongoing part of a lawn care plan, like fertilizing, weed and pest control, irrigation, and mowing.
How deep and how many cores are required for adequate aeration?
Generally, cores every 4″– 6″ and from 2″– 3″ deep will give the best results. It is commonly accepted that the deeper and the closer together, the better. The cores left in your yard will usually be about 5/8″ in diameter.
How long will the cores left on the lawn take to disappear?
The cores will break down and disappear in about two to four weeks, depending on the weather, soil conditions, watering, and mowing frequency. This process will add nutrients to the lawn. Raking up the cores reduces aeration effectiveness.
Is it essential to aerate close to obstacles such as driveways, sidewalks, and plantings?
Yes. These are often the places where compaction is most prevalent, where weeds invade, and where irrigation systems are less effective.
How wet should the yard be for best aeration results?
Dry ground reduces the depth of cores and aeration effectiveness. Wet and muddy soil allows deep aeration at the expense of crusting the soil in the hole, reducing access to the roots and making cores left in the yard a muddy mess that does not break down as fast. Normally, aerating 24 hours after a 1/2″ rain or regular watering is best.
Should aeration be done during times of drought or high heat?
No. During this time, the grass growth is less active, and aeration could increase the invasion of weeds and possibly increase the rate of water evaporation.
Should newly seeded grass or sod be aerated?
No. Sod should not be aerated for at least 12 months. Newly seeded lawns usually can be aerated in the second full season of growth. Multiple pass aeration before seeding or sodding is a good way to prepare the soil.
Can aerator tines damage sprinkler heads or other items in the lawn?
Yes. You must flag all items in the yard to avoid damage caused by the tines.
When should the lawn be fertilized?
Fertilizing immediately after aeration will achieve the best return on your fertilizer investment, as it will more easily get to the root structure at this time.
Will the lawn require more fertilization after aeration?
No. The same amount of fertilizer will give quicker and more long-lasting results because it will reach the roots, where real health occurs.
When should preemergent for weeds be applied?
Preemergent is best applied after aeration to reduce the chance of weed invasion in the yard while the grass spreads to the cored holes. Do not apply pre-emergent if you intend to overseed.
Is reseeding after aeration a good practice?
Yes. If the lawn has areas where the stand of grass is thin, broadcast seeding 1–2 weeks after aeration will improve germination, as the seeds will intermix with the deterioration of plugs and have direct access to non-compacted soil in the holes in the turf. In this area, multiple passes with the aeration equipment will dramatically improve soil conditions, leading to better overseeding results.
Should the lawn be watered after aeration?
Yes. Water helps break down the cores left in the yard and is particularly effective on the newly exposed root system.
Please call The Lawn Boys today to get a quote and schedule your Aeration. Rates vary by the yard.
Call 406-534-9498, or to expedite your request, please fill out the form below. We will contact you with your quote. Thank you!
Sure! Here’s a more polished version:
Important Note: We partner with Weed Man of Billings for aeration services. Whether you book through us or directly with them, the cost is the same.
