Chemical fertilizers, pesticides and herbicides often seep into your food and cause many health problems from toxic residues. To focus on organic gardening, try using all natural methods of gardening. Organic gardening is a friend to the environment. Organic fertilizer is usually made from plant or animal waste or powdered minerals, such as manure and compost, as well as bone and cottonseed meal. They are usually sold as "soil conditioners" rather than fertilizer, because the nutrient ratios are difficult to guarantee. Organic fertilizers may be processed at a factory, or, in the case of manure and compost, at a farm. GROW ORGANIC!