Harris 5.4 Lb. Earth Worm Castings Soil Conditioner

Earth worm castings are the microbial-rich waste by-product that earthworms produce after eating nutrient-rich organic matter such as leaves, plants, and fruit. Often considered the superfood of gardening, worm castings contain organic material beneficial for all your gardening needs. Worm castings improve soil structure, water retention and drainage. Added to soil or potting mixes, worm castings actually improve soil structure and can help increase plant yield and size.