Rain gardens and bioretention facilities are stormwater best management practices (BMPs) that utilize plants to filter sediment and treat runoff.

The terms "Rain Garden" and "Bioretention" are sometimes used interchangeably. Their size depends on the volume of runoff they are designed to capture. Bioretention facilities are designed for larger runoff areas and often utilize layers of filter media, clean-outs, or engineered overflow outlets.  Rain Gardens are usually created as landscape depressions with runoff directed from smaller catchment areas.

Environmental Concern has experience designing and building these BMPs. We are committed to promoting their use in new developments and retrofitting them into established communities to help protect receiving waters, like the Chesapeake Bay, from increasing urban development and the pollutants and sediment transported by stormwater. 


Rain Garden


This Rain Garden captures runoff from a nearby rooftop and from the lawn.


Bioretention Facilities

Bioretention with gravel and underdrain

A Bioretention often has a layer of gravel for additional water storage, and pipes that connect to an overflow.



Bioretention Brochure This brochure outlines the components of a Bioretention as a Stormwater Best Management Practice.
(click image to download PDF)

Rain Garden Plant Brochure

This helpful guide provides Rain Garden plant information including: height, flower color, bloom time.
(click image to download PDF)

Rain Garden Steps

Simple Steps to Build Your Own Rain Garden explains step-by-step what you need to know in order to construct your own rain garden.
(click image to download PDF)

Locally Grown Plants

When we design and build a Rain Garden or Bioretention we use plants grown here in our Nursery.  These plants are mainly grown from seed collected locally.


Educational Opportunities

Check here for Teacher Training opportunities to learn about Rain Gardens Click Here>>

Check for upcoming Workshops presented during our Spring and Fall Native Plant Sales Click Here>>

Take a look at some of our School Yard Habitats that utilize Rain Gardens for sormwater management and wetland education Click Here>>