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Line 35:
Line 35: + + − − Planters must be designed in a way that insulates the soil through freezing temperatures, or plants species must be used that can survive the winter season in raised planters. Line 47:
Line 47: − + − − + − + + +
→Underdrain
'''The design may benefit from:'''
'''The design may benefit from:'''
*A [[level spreaders| level spreader]]
*A [[level spreaders| level spreader]]
==Planning Considerations==
==Planning Considerations==
Stormwater Planters are a type of bioretention practice. Please defer to planning considerations in [[Bioretention]]
==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===