Rain gardens filter pollutants from rain water that washes off roofs, lawns, and paved areas, They also provide an attractive habitat for birds, butterflies, and beneficial worms and insects.
Rain gardens are specifically designed to soak up rain water, from roofs, driveways, and patios. Rain gardens look like regular flower gardens but they are so much more. When it rains, the garden fills with a few inches of water and allows the water to slowly filter into the ground rather than running off to the storm drains. This allows 30% more water to soak into the ground than regular grass lawns.