With the clay soils typical to Colorado,
it’s a good idea to aerate your lawn both in the spring and in the fall.
Lawn aeration is the secret weapon in
making your lawn healthy. Aeration involves making holes in the lawn either by
pushing a rod into it or by "coring", extracting a plug of soil. Aerating
your lawn allows oxygen, fertilizers, and nutrients access to the root system. It helps to break up thatch, and it loosens
up compacted soil, allowing the root system to grow. Aeration will also greatly improve water
penetration and help prevent runoff and water waste.