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A common characteristic of bioretention cells is that they have shallow earthen slopes, less than 2H:1V.
A common characteristic of bioretention cells is that they have shallow earthen slopes, less than 2H:1V.
The design of a bioretention cell allows for several different planting zones.
The design of a bioretention cell allows for several different planting zones.
Other selection factors:
Other selection factors:
*Most bioretention cells will be situated to receive full sun exposure.
*Most bioretention cells will be situated to receive full sun exposure.
*Facilities with a deeper media bed (greater than 1 m) provide the opportunity for a wider range of plant species (including [[trees]]).
*Facilities with a deeper media bed (1 m or greater) provide the opportunity for a wider range of plant species, including trees.
*The inclusion of vegetation with a variety of moisture tolerances ensures that the bioretention cell will adapt to a variety of weather conditions.
*The inclusion of vegetation with a variety of moisture tolerances ensures that the bioretention cell will adapt to a variety of weather conditions.
*Proper spacing must be provided for above-ground and below-ground utilities, and adjacent infrastructure.
*Proper spacing must be provided for above-ground and below-ground utilities, and adjacent infrastructure.
Selecting plant material that will be appropriate for a particular site should take into consideration the local context or setting. Some species, especially rare or potentially aggressive species, are not always conducive to the type of site or objective of the project, especially in areas near or next to natural communities. For example, a green roof that is isolated from all natural areas may be ideal for regionally rare species that are specially adapted to conditions of high exposure and shallow soils. Among the questions that should be asked are:
Selecting plant material that will be appropriate for a particular site should take into consideration the local context or setting. Some species, especially rare or potentially aggressive species, are not always conducive to the type of site or objective of the project, especially in areas near or next to natural communities. For example, a green roof that is isolated from all natural areas may be ideal for regionally rare species that are specially adapted to conditions of high exposure and shallow soils. Among the questions that should be asked are:
*Is this LID site located within, adjacent or close to a natural area? Or, is this LID site location isolated (i.e. beyond 120 m of natural feature) from the natural environment?
*Is this LID site located within, adjacent or close to a natural area? Or, is this LID site location isolated (i.e. beyond 120 m of natural feature) from the natural environment?
*What is the composition of the nearby natural area?
*What is the composition of the nearby natural area?
==Native, introduced and rare plants==
==Native, introduced and rare plants==