The bioretention garden outside of Casey Trees Headquarters

Bioretention Planter

At the entrance to our administrative office building, we have installed a 1,700 square foot bioretention planter to capture up to five inches of rain in a storm.

Bioretention planters are depressions filled with soil that captures, temporarily holds and filters stormwater runoff from adjacent surfaces such as roofs and parking lots. By capturing stormwater and making it available to the trees, shrubs and grasses planted within, the planter cleans and filters the water before it enters the storm drain. This helps prevent stormwater overflow in local streams and rivers.

An interpretive panel just inside the gate further explains bioretention planters and details the eight tree species included.

Funding for our bioretention planter was provided by the District Department of the Environment and District Department of Transportation.