HMI EVOLUTION70 Nature's Own Evolution 70 Flax Paper Mulch 50 lb is a hydraulically applied alternative fiber mulch for use as an erosion control Best Management Practice (BMP). NaturesOwn Evolution ™ 70 is composed of long strand, long lasting agricultural fibers and wood cellulose fibers. When properly applied in combination with the recommended tackifier, it forms an intimate bond within the mulch-soil interfaces.