Soil Power Organic Earthworm Castings 5 Lbs-

Widely considered by gardeners to be one of the best materials for improving soil health, earthworm castings increase soil fertility and add trace minerals that are vital to optimal plant growth. Nutrients in worm castings, especially organic ones, are superior to commercial and chemical fertilizers and friendlier for the earth, too. If you don't have your own worm farm supplying you with black gold, this is a great alternative.