What time of year is best to aerate lawn
Christopher Anderson
Published Mar 28, 2026
When should you aerate cool-season grasses and warm-season grasses? The trick is to aerate right before overseeding. The best time to have lawn care services aerate your lawn in Midwest locations is usually around August or September. In warmer states, aerate in late spring or early summer.
What month Should I aerate my lawn?
You want to aerate the lawn when your grass is in its peak growing period so it can recover quickly—think early spring or fall for cool-season grasses, and late spring through early summer for warm-season grasses.
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.
When should you not aerate your lawn?
Spring is not the ideal time to aerate the lawn, but circumstances may require it. If the soil is so compacted that existing grass can’t grow, it may be necessary to aerate in the spring. 1 Generally, though, spring aerating is discouraged because the aeration holes provide a perfect spot for weed seeds to germinate.How late in the year can you aerate?
For warm-season grasses it is too late to aerate once the growing season has passed in late summer into early fall. For cool-season grasses, late fall into early winter is too late to aerate.
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.
What temperature should I aerate my lawn?
Soil temperature is the best indication of when to aerate. Studies have shown that for cool season grasses in particular, soil temperatures in the 50 — 65 degree range is the ideal time to aerate a lawn. It is when temperatures are in this range that grass roots can grow as much as 1″ a week.
Can you aerate and overseed in the spring?
Overseeding is used for larger areas where the turf is thin, but not bare. The effectiveness of overseeding, whether done in the spring or fall, is enhanced when it is combined with lawn aeration. … It is helpful to core aerate before and after seeding into an existing lawn.Should I seed after aeration?
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.
Can I aerate in November?We recommend aeration in late summer and seeding in the fall before the turf becomes dormant in the winter months. This is because here in Maryland and Northern Virginia, the soil stays warm into November, meaning the roots will continue to grow.
Article first time published onShould 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.
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.
How do I fix a bumpy lawn?
- Set the lawn mower to a low or short setting, so the cut grass will be extremely short. …
- Rake the lawn with a garden rake to remove thatch, a layer of living and dead plant matter directly on top of the soil. …
- Apply scoops of fresh topsoil to low areas of the lawn using a shovel.
Is it too late to overseed lawn in November?
While planting grass seed in November is too late to make the fall growing season, there is a method called dormant seeding. Through dormant seeding, grass seed can be planted in November when the weather is cold enough to keep it dormant until the weather warms up in the spring.
Should you aerate your lawn in the spring?
Aeration is good for lawns, but it can stress grass if timed improperly. … For cool-season grasses common in northern lawns, early fall or early spring are the best times for aerating. For warm-season grasses common to southern lawns, the best time for aerating is late spring or very early summer.
Can you aerate in December?
It takes proper care and regular maintenance, even in the winter. While the middle of winter isn’t the best time to aerate—since the ground is hard and grass won’t recover quickly—it doesn’t mean you can’t mentally prepare yourself and physically prepare your lawn for what’s to come.
Is it bad to aerate too early?
You aerate and overseed during the wrong time of the year. The proper time to aerate is when new life has the greatest chance to grow in your region. You wouldn’t want to aerate and overseed too early, before the last frost hits for example, and kill the seeds.
Can I mow my lawn after aeration?
In general, aeration creates the most benefit on soil that is a little bit moist. Then, try not to mow right after aerating. Instead, mow beforehand, and consider laying seed and fertilizer over your lawn after aeration and give your lawn time for that new seed to germinate before you mow again.
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.
Can you power rake and aerate at the same time?
It is recommended that you power rake your lawn before aerating it. Power raking first will help prepare the grass for aeration. You should power rake at least 5 to 7 days before aerating so that your lawn has time to recover between procedures.
Do I fertilize or overseed first?
Stop fertilizing for at least a month before overseeding. The fertilizer makes your grass grow faster, which makes it harder for the new seeds to take hold. Identify your grass type or the type of grass you want to grow, so you can manage it appropriately.
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.
Can you aerate in the summer?
Warm weather grasses should be aerated when the weather begins to warm. This means that aeration should occur between late spring and through the summer. … This means that aeration should occur between late summer and through the fall. Aerating these grasses during the summer heat can put stress the grass.
Can I reseed my lawn in March?
You can overseed at other times of the year. Spring (March – May), is also a favourite time for overseeding. Just remember grass seed germination relies on two main factors – soil temperature, and moisture.
Should I put topsoil over grass seed?
You don’t need to turn the topsoil over. Just break it up so the new grass seeds’ roots can easily grow through. If you just have a small area to seed, a digging fork will do the trick. For larger areas, consider a core aerator.
Can I aerate my lawn in February?
The Winter is a very good time to alleviate compaction and drainage problems by aerating the lawn. … Any paricularly damp or hard areas should be targetted for repeat forking over the Winter, and if the problem is not alleviated then some proper drainage will have to be considered in the long term.
Should you water your lawn 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!
Which lawn aerator is best?
Best Overall: Brinly-Hardy PA-40BH Tow Behind Plug Aerator Since plug aerators are a must for clay soils and can be used on looser soils as well, this durable, all-steel construction aerator with “no-flat” tires is our best overall choice. The 40-inch width and 24 3-inch plugs help cover large areas quickly.
Can you aerate in the rain?
You can aerate a lawn when it is wet provided that it is not excessively wet. Lawn aeration involves making small holes on a lawn’s surface at regular intervals and moist soil helps the process. However, depending on the soil type, excessive moisture can hamper the process.
Which is better plug or spike aerator?
Plug aerators are usually more effective at relieving compaction in lawns with a heavy clay soil since the solid tines used on spike aerators compact the clay soil further when they push into the ground. … Soils that crumble easily are usually high in loam and sand which benefit more from the use of a spike aerator.
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.