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→Additional site opportunities
*A [[level spreaders| level spreader]]
*A [[level spreaders| level spreader]]
==Planning Considerations==
==Planning Considerations==
Stormwater planters may be integrated into the landscape similarly to bioretention practices. See [[Bioretention#Planning considerations|bioretention planning]].
===Additional site opportunities===
As they do not require connection to the earth for infiltration purposes, stormwater planters can also be used in elevated locations. They are sometimes used in retrofit applications on otherwise impermeable surface, as raised beds or planters surrounding buildings. They can be employed to capture [[downspout disconnection]] or even upon terraces or vertical surfaces of buildings.
==Design==
==Design==
{{:Planters: Sizing}}
{{:Planters: Sizing}}
===Storage media===
===Storage media===
===Underdrain===
===Underdrain===
Stormwater planters differ fundamentally from [[bioretention]] in that the storage function is provided only by the [[water retention capacity]] of the [[filter media]]. As such there is no storage reservoir and the only purpose to the aggregate layer is to drain water to the perforated [[pipe]]. For this, a medium aggregate as described in [[choker layer]] is recommended as it negates the need for a separating layer to the filter media.
Stormwater planters differ from full and/or partial infiltration [[bioretention]] practices in that the storage function is provided only by the [[water retention capacity]] of the [[filter media]]. As such, there is no storage reservoir and the only purpose to the aggregate layer is to drain water to the perforated [[pipe]]. For this, a medium aggregate as described in [[choker layer]] is recommended as it negates the need for a separating layer to the filter media. Design details can be found here [[Underdrains#Underdrains for non-exfiltrating practices|Underdrains]] for non-exfiltrationg practices.
[[Underdrains#Underdrains for non-exfiltrating practices|Underdrain]]
===Planting===
===Planting===
Stormwater planters routinely capture only rainwater flowing from adjacent rooftops. This means that [[salt]] may be less of a concern than in [[Bioretention: Parking lots]] or [[Bioretention: Streetscapes]].
*Planters must be designed in a way that insulates the soil through freezing temperatures, or plant species that can survive the winter season in raised planters must be used.
The [[plant lists]] are still a good place to start when selecting species for LID in Ontario.
*Stormwater planters routinely capture only rainwater flowing from adjacent rooftops. This means that [[salt]] may be less of a concern than in [[Bioretention: Parking lots]] or [[Bioretention: Streetscapes]].
*The [[plant lists]] are still a good place to start when selecting species for LID in Ontario.
*A more formal aesthetic for the planting design is appropriate for the urban hardscape setting.
===Liners===
===Liners===