What is a Raingarden?
Raingardens are where form meets function and gutter meets the ground.
They are gardens designed to soak up rain, mainly from roofs, but also from driveway and patios. Raingardens look like regular flower gardens, but they are so much more. When it rains, a raingarden fills with a few inches of water and allows water to slowly filter into the ground rather than running off to storm drains that connect to surface water (streams and bays) and groundwater (drinking water source). Compared to a same size patch of lawn, raingardens allow about 75% more water to soak into the ground! They also provide wildlife habitat and add beauty to neighborhoods!
Plan: Choosing a spot
Raingardens can be designed to catch water from a roof or driveway. Pick a hilly spot with a slight depression; you’ll have less digging to do.
Prepare: How Big?
Size of raingarden will depend upon 3 key factors:
A typical residential raingarden is about 50-100 square feet. For advice on calculating dimensions of raingarden, contact the Nassau County Soil and Water Conservation District at 516-364-5860 or email at Nassauswcd@optonline.net.
Plant: Ready to Dig?
Choose plants that:
Tip: Dig each hole twice the width of plant root-ball. The hole should be deep enough so that top of plant’s root-ball is level with ground.