RAIN GARDENS

 

A rain garden is a shallow depression that collects rainwater and allows the water to soak into the
ground instead of running off into the stormwater
 system. They are relatively easy to make and play
an important role in urban stormwater runoff
control. Rain gardens are planted with native plants
that have deep root systems which capture the
runoff from downspouts and parking lots. These
systems naturally filter pollutants and contaminates
by removing fertilizers, pesticides, nutrients, and
other chemicals and prevent them from entering
the water system.

 

In addition to the extremely important
environmental benefits, these areas also provide
 habitat for birds and beneficial insects since they
are planted with native flowers and grasses.

 

 

 

  

Benefits of Rain Gardens
 
Improve stormwater quality: Rain gardens serve as mini bioretention areas. They detain rainwater and allow the high concentration of material and particles as well as the nitrogen, phosphorous, lawn fertilizers, pesticides, and other pollutants in the water to be removed. This reduces the overall sediment and nutrient load in the stormwater before it continues into our storm drains, creeks and rivers.
 
Improve water infiltration: The rain garden’s detention of rainwater allows the water to filter into the ground and reduces the volume of stormwater runoff. This helps reduce flooding and other drainage issues in the water system.
 
Provide wildlife habitat: Rain gardens contain native wildflowers, grasses, and sedges which creates habitat for birds, butterflies, and other beneficial insects.
 
Enhance the beauty of the yard: The native wildflowers and grasses provide an attractive alternative to traditional mowed lawns.
 

 

 Site created by Dan McCord.

Copyright 2011 Hamilton County Urban Conservation Association, Inc. All Rights Reserved.