How to Improve a Clay Soil Lawn. Test the soil. A soil test determines the fertility of the soil by measuring the amount of nitrogen, phosphorus, potassium and other nutrients that are in the soil. Aerate the soil. Top-dress the lawn. Till the soil. Install a drainage system. Overseed in the fall. Feed the grass. Stay.
Many lawns have problems with clay soil. The best solution for excessive clay is to amend the soil with organic matter. This fact sheet will help understand how.
They also digest thatch and other organic matter in the soil and convert it into humus and rich, fertile castings. If your lawn is growing in a poor clay soil, it will always be prone to the problems that come with clay. Improve the clay and you will improve the lawn. It is as simple as that.
My part of the county isn't called the Big Woods without reason, and the clay soil in my back yard will grow some awesome oak, maple, poplar, and hickory, .
But how do you improve clay soil that already has a lawn growing in it? There is no way to till in organic matter down deep into and below the root zone without .
A lawn with clay soil is heavy and compact when it's wet. It can absorb and trap water for extended periods, making it difficult for grass to become established.