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Plant species appropriate for use in bioretention areas vary with climate and region. Species should be selected based on the ability to tolerate urban stresses such as:

• Expected pollutant loadings

• Highly variable soil moisture conditions

• Ponding water fluctuations.

• Soil pH and texture

• Form, size, and type of root system

A key factor in designating a species as suitable is its ability to tolerate the soil moisture regime and ponding fluctuations associated with bioretention. Species are predominantly facultative (i.e., they are adapted to stresses associated with both wet and dry conditions); however, upland and wetland species may also be included. This is important because plants in bioretention areas will be exposed to varying levels of soil moisture and ponding depending upon the facility design and weather conditions. Species should be commonly found growing in the subject region as either native or ornamental species.

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The above information was derived from the Prince George's County Bioretention Manual.

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The information on this website was compiled by T.E. Scott & Associates, Inc. from various sources.

We make no guarantees or warranties to the applicability of this material to specific applications. 
Last modified: 04/27/08