GreenForest Nursery, Inc. has changed our media to a forestry product called flail debris. This stems from research funded by the Horticultural Research Institute (HRI) and supported by GreenForest Nursery. Through studies done at the United States Department of Agriculture (USDA) experiment station in Poplarville, Mississippi and Auburn University, limb material and/or smaller whole trees can be mechanically chipped and then used as a growing media for nurseries. Cost savings can be significant using this type of media, and it greatly expands the number of growing media available to our industry. Please visit for more information on this and other research. Join us in supporting HRI and the research it funds for a better horticulture industry.