Cowsmo Compost is considered a soil amendment (not a fertilizer), which has a number of positive attributes when added to existing soil or when mixed with other ingredients to create a potting soil. Much like cow manure, compost adds organic matter and good bacteria which promote soil life, which in turn feed plants. Unlike cow manure, however, Cowsmo does not smell and it does not have viable weed seeds because it has been composted properly. Organic matter also improves the texture of soil, which can be useful in both gardening and landscaping applications making it easier to work with. In addition, amending soils to achieve a proper organic matter content can improve water retention and drainage. In potting soil, compost provides a favorable texture to the mix, and the organic matter it contains can release nutrients more slowly over the course of a season.