How Rain Gardens Work
A rain garden may look similar to a street tree pit or a small garden, but there are some key differences. Here’s how you can tell the difference:
- Curb inlet - The inlet allows water to flow into the rain garden as it flows down the curb toward the catch basin.
- Outlet - Larger rain gardens also have an outlet. If the rain garden fills to capacity, water can exit through the outlet and continue into the catch basin on the street corner.
- Stone Strip - The stone strip allows people to step out of their cars without damaging the plants.
- Plants - All rain gardens have plants and grasses which have been carefully selected to ensure they can survive on busy New York City streets.
- Soil - The soil is graded so that water ponds in the center of the rain garden.
- Tree Guard - All rain gardens have tree guards around them that protect the plants and keep people and dogs from walking inside of it.
- Tree - DEP plants trees in rain gardens as often as possible. Trees benefit neighborhoods by lowering temperatures in hot summer months, improving air quality, and providing habitat for birds and butterflies.