Coast of Maine Wiscasset Blend Worm Castings is an exceptional soil conditioner. Use to top dress indoor container plants or brew it into a quick compost tea by mixing with water, molasses and aerating overnight. Gardeners have long known that there's magic in worm castings – the thousands of species of soil bacteria, amoeba, protozoa, fungi and nematodes that digest organic material and make soil nutrients more readily available to plant roots. Available in 8 quart bags.