Build a Rain Garden
There’s a new garden in town. It is (mostly) easy to install, looks good
year-round, requires almost no maintenance and has a terrifically upbeat impact
on the environment. No wonder rain gardens are such a great new gardening trend!
Storm water runoff can be a big problem in summer during heavy thunderstorms.
As the water rushes across roofs and driveways, it picks up oil and other
pollutants. Municipal storm water treatment plants often can’t handle the
deluge of water, and in many locations the untreated water ends up in natural
waterways. The EPA estimates as much as 70 percent of the pollution in our
streams, rivers, and lakes is carried there by storm water! By taking
responsibility for the rainwater that falls on your own roof and driveway, you’ll
be helping to protect our rivers, streams and lakes from stormwater pollution.
To reduce the excess water runoff, many towns are encouraging businesses and
homeowners to install rain gardens in their yards. Rain gardens are specially
constructed gardens located in low areas of a yard where storm water can collect.
The idea is to have the water naturally funnel to this garden. The rain garden
collects water runoff and stores and filters it until it can be slowly
absorbed by the soil. Rather than rushing off into a storm sewer or a local
waterway, the rainwater can collect in a garden where it will be naturally
filtered by plants and soil.
Installing a rain garden is easy.
You simply dig a shallow depression in your yard and plant it with native
grasses and wildflowers; things that are easy to grow and maintain in your area.
What makes a garden a rain garden? First, the garden will be designed with a low
spot in the middle to collect and absorb rain water and snow melt. This depression
can range from a few inches in a small garden, to an excavated trough that’s
several feet deep. Second, rain gardens are usually located where they’ll catch
the runoff from impermeable surfaces like sidewalks and driveways, or from gutters
and roof valleys. Third, rain gardens are usually planted with native wildflowers
and grasses that will thrive in tough growing conditions. Finally, rain gardens
are designed to channel heavy rains to another rain garden or to another part of
the garden.
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