Existing comment:
United States Botanic Garden
Rain Garden
These rain gardens and the surrounding hardscapes capture rainwater--slowing it down and allowing it to soak into the ground rather than run into the sewer system. Water flowing across poorly managed landscapes, streets, and sidewalks picks up pollutants and flows into sewer systems or directly into streams and rivers where it can negatively impact the ecosystem. In the Mid-Atlantic region, stormwater runoff is one of the largest sources of pollution in the Chesapeake Bay and other waterways. Rain gardens are part of the runoff solution and act as bioswales that filter rainwater through their vegetative and soil layers.
USBG.gov/RainGarden |