Root zone
Lawn Aeration
Core aeration that opens compacted clay so water, air and fertiliser reach the root zone instead of running off the top of it.
Chapter 01
What compaction is doing to a clay lawn
Clay soil squeezes shut under weight. Foot traffic, mowers, vehicles and its own wetting and drying cycle press the particles together until the pore space between them closes up. Without pore space there is nowhere for air or water to go.
The lawn above it then behaves in a way that looks like a watering problem and is not. Water sheets off instead of soaking in, roots stay in the top inch or two because that is the only place they can breathe, and the first hot dry fortnight in July finds those shallow roots immediately.
Paver driveway edged by a river rock foundation bed running along a large home
Cores, not spikes
Core aeration pulls plugs of soil out of the ground and leaves them on the surface. Removing material is what actually relieves compaction, because it gives the surrounding soil somewhere to expand into.
Spiking, which presses holes in rather than pulling material out, compacts the walls of every hole it makes. It looks like the same job and does close to the opposite of it. The cores left on the surface break down within a couple of weeks and are worth leaving there.
Chapter 03
Timing it to the grass
A cool season lawn is aerated in the autumn, when the plant is actively growing and recovers fastest, and when the holes are least likely to simply dry out.
Aerating a stressed lawn in the middle of a Kansas summer opens it up at the worst possible moment. If a lawn is struggling in August, aeration is what you plan for September rather than what you do that week.
What it is worth doing alongside
Aeration opens the best window in the year for two other things. Overseeding, because the holes give seed genuine soil contact instead of leaving it to sit on thatch. And feeding, because the application reaches the root zone rather than the surface.
Doing all three together is why aeration tends to be the single visit that makes the most visible difference the following spring.
Timed to your grass type, and the best window there is for overseeding.
Root zone
Aeration is usually booked together with overseeding
The holes are the best seed bed the lawn will have all year, so doing both in one visit gets considerably more out of the same machine time.
Call the Auburn office on (785) 256-7300, or request a consultation and someone will come and walk the property with you.