J.R. Feucht, Colorado State University Cooperative Extension landscape plants specialist and professor, horticulture (retired)
Organic matter is best used as an amendment rather than a source of fertilizer. First determine whether the problem in growing healthy plants is nutrition or a physical property of the soil. The best soils for growing plants are uniform in texture throughout the root zone and have a good balance of minerals, air and organic matter. If a soil is too sandy or high in clay, the solution to both extremes is essentially the same add organic matter. The best organic amendments include relatively coarse, partially decomposed compost and aged barnyard manure. For complete information see CSU Fact Sheet 7.222.
Photograph courtesy of Judy Sedbrook.
© CSU/Denver County Extension Master Gardener 2010
888 E. Iliff Avenue, Denver, CO 80210
Date last revised: 01/05/2010