Have you heard about hydroponics gardening? This is a way to grow plants using no soil and in a controlled environment. This can usually lead to larger yields and healthier produce since there are no pests or pesticides to deal with. Most of the time this gardening is done in a greenhouse where the grower can keep conditions perfect. So if there is no soil, what do you use? Gravel is the choice of hydroponics growers. You use a special mix of food to provide adequate nutrients to your plants. Hydroponics is great when you build a cheap greenhouse to go along with it.