Septic Field Mix for Sand & Gravel Backfill
|Soil Type||Gravel, Sand|
|Sun Exposure||Full Sun|
|Height||1' - 5'|
|Seeding Rate||10 Lbs per Acre or 1/4 Lb per 1000 Sq Ft.|
Native prairie plants for dry soils are recommended for planting over septic mounds and drain fields (soil absorbtion fields), and will not clog septic system pipes. The roots will absorb additional nutrients in the wastewater and prevent them from entering the groundwater. This seed mix contains at least 15 wildflowers and 2 or more grasses. If your septic systems has received a layer of topsoil over the sand and gravel backfill, you may use our Short Prairie for Medium Soils Mix, instead.
When planting over a drainfield it is important to avoid wetland, or high moisture species, which will seek additonal moisture and are more likely to invade pores & pipes.
Establishing a native plant community from seed can take 3 years or more. Read our Seed Mix Establishment Guide.