Noble Worm Organic Worm Castings offer a safe, organic, natural method to reinvigorate soil. More advanced than plain compost, and infinitely more eco-friendly than synthetic fertilizers. The worms are raised on plain peat moss beds and fed NON-GMO corn silage. Worm castings are dry, odorless, do not burn and are safe and non-toxic to people and pets. Ideally suited for growing fruits and vegetables for your family, as well as houseplants, flowers and ornamental foilage.