Soil, sun, water and climate are the four essential elements that facilitate the success or failure of any garden. Whether you are planting vegetables, flowers, fruit trees or what have you, so long as they are not grown hydroponically they rely on good fertile garden soil from seed to harvest.
Working with unmanageable, poorly drained, infertile soil is wholely unproductive and a lesson in futility. Soil relies on an number of things to remain healthy and fertile. Micro organisms, organic matter, composition and mineral content and your plants rely on the soil.