PBH Nature's Media Amendment is a uniquely processed rice hull product from Riceland Foods, Inc. It has multiple uses in the greenhouse and nursery environment. For greenhouse production, it is the perfect replacement for perlite in growing mixes. Use PBH as a container topdress in nursery stock to prevent airborne weed seeds from reaching the growing mix. PBH Nature's Media Amendment lowers freight costs, generates less waste, and minimizes storage and handling. It is a natural by-product of rice. It is a renewable resource and benefits greenhouse growers, nurserymen, consumers, and the environment. PBH is highly compressed when packaged. It is available in your choice of a 30 cubic-foot bag (90 cubic feet when uncompressed) or a 2.33 cubic-foot bag (7 cubic-feet when uncompressed). PBH is OMRI Listed® and WSDA-registered.