What is the best ground cover for my drainfield?
Grass is the ideal ground cover for drainfields. Grass can be ornamental, mowed in a traditional lawn, or left in an unmowed meadow. The key to planting over the drainfield is to select shallow rooted plants that require low-maintenance and low-water use. Do not plant a garden or vegetables over a drainfield. Vegetables need watering, and excess water in the soil reduces its ability to treat wastewater. The deep roots of some vegetables may damage drainfield pipes. Bed preparation, such as rototilling or deep digging, can also damage pipes. Plus, there is the risk of contaminating food crops with sewage.
