Changes

*Dense shrubby plants should be avoided in locations where the accumulation of trash  is anticipated as a maintenance problem, or where their growth can hinder maintenance and inspection of [[inlets]] or [[Overflow|other structures]].

*Dense shrubby plants should be avoided in locations where the accumulation of trash  is anticipated as a maintenance problem, or where their growth can hinder maintenance and inspection of [[inlets]] or [[Overflow|other structures]].

*[[Trees]] should not be planted directly over underdrains, and may be better sited at the perimeter of bioretention cells.

*[[Trees]] should not be planted directly over underdrains, and may be better sited at the perimeter of bioretention cells.

*Whilst it is not always necessary to use an entirely native planting palette, invasive plants are inappropriate for LID practices.   

*While it is not always necessary to use an entirely native planting palette, invasive plants are inappropriate for LID practices.   

==Plant Selection==

==Plant Selection==

===Salt tolerance===  

===Salt tolerance===  

The low, medium and high categories indicate the tolerance of plant species to [[salt]] exposure and/or uptake. Plant species with low salt tolerance should not be used in any LID practice receiving runoff from salted roads and parking lots. Species with medium salt tolerance can be utilised in LID practices that will be receiving road runoff but should not be in the line of salt spray or be receiving the bulk of the runoff. Species with high salt tolerance should be planted in LID practices that receive road or parking lot runoff that routinely contains road salt.  Few plants are truly halophytic or “salt-loving”.  In most cases, elevated salt levels are temporary and precipitation quickly dilutes and removes salt from the soil profile. The plant lists below include recommended species for LID practices likely to receive road or parking lot runoff.

The low, medium and high categories indicate the tolerance of plant species to [[salt]] exposure and/or uptake. Plant species with low salt tolerance should not be used in any LID practice receiving runoff from salted roads and parking lots. Species with medium salt tolerance can be utilised in LID practices that will be receiving road runoff but should not be in the line of salt spray or be receiving the bulk of the runoff. Species with high salt tolerance should be planted in LID practices that receive road or parking lot runoff that routinely contains road salt.  Few plants are truly halophytic or “salt-loving”.  In most cases, elevated salt levels are temporary and precipitation quickly dilutes and removes salt from the soil profile. The plant lists below include recommended species for LID practices likely to receive road or parking lot runoff.

===Compaction and Pollution Tolerance ===

===Compaction and pollution tolerance ===

Development nearly always causes compaction of on-site soil, and bioretention facilities  in road-right-of-ways should be pollution tolerant.

Development nearly always causes compaction of on-site soil, and bioretention facilities  in road-right-of-ways should be pollution tolerant.