DTE BRAND POTTING SOILS - Down To Earth Distributors, Inc. OMRI listed organic planting soil, potting soil and seed starting mix contains the best ingredients to get seedlings and plants off to the right start. Ingredients: Earthworm Castings, Dolomitic Limestone, Peat Moss, Perlite and Diatomite, Mycorrhizal Fungi and Soil Inoculants. Our bulk coir products, are available in coco fiber bales or coco husk chips and coir bricks. It is an excellent amendment for all types of potting media, from seed starting mix to potting soil, and can be used in plant pots or containers, because it promotes aeration and drainage and can hold up to 10 times its own weight in water. Coir is ideal for worm bins, compost piles, hanging baskets and garden soils.