A rain garden is designed to collect and absorb stormwater runoff from a roof, driveway or other impervious surface. Rain gardens are a formed from a shallow depression in the soil that is planted with native perennial plants. As stormwater runoff collects in the rain garden and is absorbed, pollutants and debris are filtered out, keeping them out of our streams, rivers and lakes. In addition, rain gardens can help reducing flooding, recharge the groundwater, and also look nice!
One inch of rainfall means 600 gallons of water can be captured by a typical rain garden. So by planting a rain garden, you can help solve some of our stormwater problems.
City of Ann Arbor Stormwater Credits Available for Installing Rain Gardens The City of Ann Arbor offers credits toward City resident’s stormwater rate bills for reducing the impervious areas of their residential property. Credits are available for: