Answers to Questions about Lawn Aeration

Q: What is core aeration?

A: In simplest terms, it is the process of making finger sized holes in your lawn and depositing the removed material on the surface to break down. This allows fertilizer, seed, water and oxygen to get to the roots where healthy grass originates.

Q: When should aeration be scheduled?

A: For cool season grasses: spring (March-May)
and fall (August-November) are best.

Q: When will positive results be seen in the lawn?

A: Depending on the turf conditions, visual results may or may not be immediate from a single aeration. Subterranean root growth and overall health and stress tolerance will however begin to improve 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 year after a second or third aeration.

Q: Is lawn aeration a one-time fix?

A: No. Aeration needs to be an ongoing part of a lawn care plan just like fertilizing, weed and pest control, irrigation and mowing. In some cases aeration can be reduced from twice a year to once a year after a couple of seasons.

Q: How long will it take the cores on the lawn to disappear?

A: 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.

Q: When should the lawn be over seeded?

A: Over seeding immediately after aeration will achieve the best return on your seed investment, as it will more easily get into the lawn root structure at this time.

Q: Should the lawn be watered after aeration?

A: Yes. Water helps breakdown the cores left in the yard and is particularly effective on the newly exposed root system.

Q: Should I dethatch my lawn??

A: It is not recommended in the Midwest. Please see the following articles regarding dethatching:

http://www.colostate.edu/Dept/CoopExt/4DMG/Lawns/aerate.htm

http://lawncaretips.blogspot.com/2005/03/dont-get-sold-on-power-raking.html


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