A rain garden is a landscaped area planted with native plants and flowers that soaks up rainwater.
The garden fills with a few inches of rain water that come off of the roof of a house or building during a storm. After the storm, the water slowly soaks into the ground instead of running off the land into a storm sewer or waterway. Compared with a grassed lawn area, a rain garden allows up to 30% more water to be absorbed. Planting native plants in a rain garden is best because of their deep roots, water uptake, and their ability to tolerate conditions from wet to dry and hot to freezing.