Septic Field Mix for Sand & Gravel Backfill

Native prairie plants are recommended for planting over mounds and drain fields. Nutrients in the wastewater are taken up by the plants, instead of entering the groundwater. Studies have shown that the roots of prairie plants do not clog septic …
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Availability: In stock
SKU
50008
Quantity Price Ea.
1/4 Lb $80.00
1/2 Lb $160.00
1-2 Lb $215.00
3-4 Lb $171.66
5-9 Lb $155.00
10+ Lb $139.50
Cultural Details
Soil Type Gravel, Sand
Soil Moisture Dry
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.

Establishment Notes

Establishing a native plant community from seed can take 3 years or more. Read our Seed Mix Establishment Guide.

Pure Live Seed Notes
All seed is Pure Live Seed (PLS). One PLS pound is defined as the weight of seed required to equal one pound of 100% pure, germinable seed. This is calculated based upon each seed lot's purity and germination tests. We track the ecotype origin of our seed inventory and provide this information at customer request.