safe trees and shrubs on and near septic mound.

Asked November 20, 2016, 4:43 PM EST

which trees and shrubs can i safely and effectively on a large 3 vent septic mound? I asked this question on an e~mail a few minutes earlier but ha an invalid e~mail address. apologies.

Kitsap County Washington drinking water landscape plants septic systems planting over septic drain field

1 Response

You may want to check with your local county building/health department for any list of plants they recommend. In short you do not want to place any plants on the mounds that will need to be removed to do repairs or will have deep growing roots that will enter the tank or drain field. Most flowering shrubs are ok. Native shrubs like evergreen huckleberry or salad hve sallow roots and produce ediable fruit. Raspberries and blackberry plants are great. Small/dwarf fruit trees (apple,pears) would work also. Native trees have very aggressive root systems that can cause many problems. You can e-mail me if you need additional help. Freedj@wsu.edu