Soil a mixture of minerals and organic matter. The mineral content of soil is usually derived from disintergrated rock and decomposed plant or animal matter. Mixed together with water, air, bacteria and living organisms.
Fortunately both sandy and clay soils can be improved by adding various types of organic matter. This includes horse manure, leaves, food scraps. Worms and other soil organisms transform organic matter into humus, the plant food and soil conditioner. The activities of living organisms also carry organic matter through the soil and allow for the penetration of air and water. All these factors allow for a healthy soil composition and a healthier garden.