Vermicompost (also called Composts, compost, vertices, worm castings, worm humus or worm manure) is the end-product of the breakdown of organic matter by some species of earthworm. Containing water-soluble nutrients, microbes, and bacteria, vermicompost is one of the best, nutrient-rich organic fertilizer and soil conditioners available. The process of producing vermicompost is called vermicomposting. The use of vermicompost as fertilizer is the best option for people who want to produce food in the garden as healthy and natural as possible. The most important aspect of compost produced by earthworms is that it is 100% organic.