Core aeration is achieved by a core aerator machine pulling plugs out of the soil and placing them on the surface to dry. Then the next time you mow they are crushed and the soil is mixed into the thatch layer on the surface, adding micro-organisms to the thatch layer helping it to decompose and create new soil.
Aeration also allows air, water and nutrients to easily reach the root zone by relieving compacted soil and opening up the thatch layer. Core Aeration stimulates new growth, improves drainage, provides a better environment for over-seeding and increases the effectiveness of applied fertilizer and control products. Aeration is one of the best things you can do for your lawn.
The best times to aerate are in the spring and fall when the soil temperatures are cool.
It is suggested that a lawn be aerated at least every other year, but preferably every year.