How does a rain garden work?
A rain garden receives runoff from roofs or other hard impervious surfaces such as driveways, parking lots, and sidewalks. The rain garden holds the water on the landscape so that it has time to soak into the ground instead of flowing into the street and down a storm drain. This infiltration is beneficial for recharging the groundwater. The plants, mulch, and soil in a rain garden combine their natural physical, biological and chemical processes to remove the pollutants from the runoff.

Show All Answers

1. Are sewers and storm drains the same?
2. What can you pour down the storm drains?
3. Why plant a rain garden?
4. How does a rain garden work?
5. Are rain gardens mosquito breeding grounds?