How to Test Clay Soil
Determine whether or not your garden has clay soil with these two simple steps.
Step 1: Test Soil
To check if you have clay soil, and thus soil that may become waterlogged in winter and be more difficult to dig than other soil types, remove small samples of soil from different spots around the garden from just below the soil surface. Clay soil will feel quite sticky and heavy when shaped in the hand. Try to mold the soil in your hands—the particles of clay soil will hold together well and change shape when pressed.
Step 2: Roll Soil
Heavy clay can even be rolled into a thin cylinder; it will often appear smooth and shiny.