What kind of flowers/shrubs can be planted over a septic tank leach bed?
The septic tank leach bed covers 1/2 of my back yard. Is there anything that can be planted over it that wont do damage to it? What if the ground above it is built up first?
Suzan...
Expert
Most recommendations call for planting only lawn over leach fields. You can get away with shallow-rooted flowers, too. I would not plant trees or shrubs. Do not add soil over the leach field; the soil microbes that break down the leachate require oxygen and may not do their job properly if the pipes are too deeply buried. You might try planting the area with a mixture of low-maintenance perennials, such as daylilies, coneflower, and black-eyed susans, for example. Be very careful if you till the area; till only shallowly.
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