How to Loosen Hard Clay Soil for a Garden
- 1). Till the soil using a Roto-tiller or turn it over with your shovel. Break up big clots with your shovel and leave wet clumps to try in the sun. Tilling will help soil permeability and oxygen diffusion.
- 2). Add amendments to the soil. By adding soil amendments, the clay particles will form larger granules and the overall soil structure will improve. Start by adding compost and green plant material to the soil. Work the amendments at least 4 to 6 inches deep into the soil.
- 3). Incorporate your high nitrogen fertilizer into the soil. When the compost and green plant material is breaking down it will compete with the plants in the garden for nitrogen so it is important to supplement the soil with extra nitrogen.
- 4). Mix in some granulated lime to raise the pH of the soil. Clay soil is acidic and granulated lime will help raise the pH levels back to a good level. This should be done a season before planting to allow it to absorb.