Roots Organics Earth Worm vermicompost contains organic matter to assist in soil aggregation and improve cation exchange capacity of soils. Roots Organics earthworms are carefully tended and fed an unparalleled blend of natural and organic feedstocks for exceptional quality vermicompost. Roots Organics Earth Worm is a great amendment or top dress to aid in the proliferation of soil microbes and encourage vigorous root growth.