Rain gardens are basically gardens designed with a depression (low spot) and plants that can tolerate both wet and dry settings. If located and designed properly, rain gardens capture and absorb rainfall before it enters lakes, rivers and storm sewers. Since rain gardens help capture storm water runoff, they are a great tool to help prevent erosion problems and keep pollutants from reaching water bodies.
A rain garden is most effective on a flat or gently sloping landscape with a large portion of impervious ground cover, such as buildings, driveways and walkways. For more information regarding rain gardens, view the Blue Thumb website.