Changes

     <p><strong>The fundamental components of a bioretention cell are:</strong>  

     <p><strong>The fundamental components of a bioretention cell are:</strong>  

*A 'filter bed' containing an engineered soil mix ([[biomedia]])

*A 'filter bed' containing an engineered soil mix ([[biomedia]])

*A storage layer of [[Reservoir_gravel|coarse aggregate]]

*A storage layer of [[Reservoir_gravel|coarse aggregate]] (not usually in rain gardens)

*Planting and a finishing surface layer (e.g. mulch)

*Planting and a finishing surface layer (e.g. mulch)

         <strong>Additional components may include:</strong>  

         <strong>Additional components may include:</strong>