Erosion Control - Ask Extension
What are the best plants to plant on steep sandy slopes near Hermiston Oregon for erosion prevention?
Knowledgebase
Erosion Control #465024
Asked June 24, 2018, 7:00 PM EDT
What are the best plants to plant on steep sandy slopes near Hermiston Oregon for erosion prevention?
Umatilla County Oregon
Expert Response
Thanks for your question about a very tough situation, a steep sandy slope in Central Oregon. I can't give you a specific list of all the plants that might work, but I can make some suggestions that should help you zero in on good choices.
First, the plants need to be adapted to a hot, dry site - native plants for your area will be the best choices. They should have a dense, fast-growing root system that can hold soil. Many shrubs and ground covers meet this requirement.
This list, Pacific Northwest Native Plants for Erosion Control is a good place to start. Look in the Sun column, and for plants that take drier conditions. For instance, Kinnikinnick, Roemer's Fescue, and Red-flowering Currant would be good choices.
When you plant the slope, make sure to apply a heavy mulch while the plants are young - coarse wood chips are good. This will not only retain moisture, but help prevent erosion until the plants get their roots established. They will also benefit from establishment watering the first few summers - deep but infrequent watering to encourage their roots to go deep.
You may be able to get more suggestions for your specific area by checking directly with your local Extension office, 2411 NW Carden Ave, Umatilla Hall, PO Box 100, Pendleton,<personal data hidden>, and local nurseries.
