Hydraulic mulch is comprised of small pieces of cellulose fibers, which can be made completely from wood waste or recovered paper. It stabilizes soil, prevents wind and water erosion, and provides protection and warmth for seeds, helping them grow. Through hydroseeding, a mixture of water, seeds, and hydraulic mulch is sprayed over bare soil to quickly promote plant growth.
EPA's Recovered Materials Advisory Notice (RMAN) recommends recycled-content levels for purchasing hydraulic mulch as shown in the table below.
|Product||Material||Postconsumer Content (%):||Total Recovered Materials Content (%):|
|Paper-Based Hydraulic Mulch||Paper||100||100|
|Wood-Based Hydraulic Mulch||Wood and Paper||--||100|
of Manufacturers and Suppliers
This database identifies manufacturers and suppliers of hydraulic mulch containing recovered materials.
Buy-Recycled Series: Landscaping Products (PDF) (7 pp, 120K, About PDF)
This fact sheet highlights the landscaping products designated in the CPG, including hydraulic mulch, and includes case studies, recommended recovered-content levels, and a list of resources.
Technical Background Documents
These background documents include EPA's product research on recovered-content hydraulic mulch as well as a more detailed overview of the history and regulatory requirements of the CPG process.