2,124
edits
Changes
Jump to navigation
Jump to search
Line 7:
Line 7: − + Line 56:
Line 56: + + Line 154:
Line 156: − +
→Salt tolerance
Landscapes that use native plants; including trees, graminoids, shrubs/bushes, tall grasses and perennials to aid is both capturing and 'soaking up' rainwater can help reduce flood risk, build climate resilience, improve water quality and provide habitat for pollinators. There are 3 major types of 'rain-ready landscapes' to choose from when adopting the use of plants in LID practices:
Landscapes that use native plants; including trees, graminoids, shrubs/bushes, tall grasses and perennials to aid is both capturing and 'soaking up' rainwater can help reduce flood risk, build climate resilience, improve water quality and provide habitat for pollinators. There are 3 major types of 'rain-ready landscapes' to choose from when adopting the use of plants in LID practices:
[[File:CVC Plant list.PNG|365px|thumb|link=https://cvc.ca/document/plant-list-native-plants-for-rain-ready-landscapes/?access=8fb53274fcf90837941a9cc25086f47a|CVC's recent 'Rain-ready' guide for native plants in Ontario that can be selected for a variety of LID features to help both reduce flood risk occurrences and improve stormwater quality. <ref>CVC. 2022. Native Plants for Rain-ready Landscapes. Plant these native wildflowers, grasses, shrubs and groundcovers to help manage stormwater – beautifully. cvc.ca/GreenYourProperty. https://cvc.ca/document/plant-list-native-plants-for-rain-ready-landscapes/?access=8fb53274fcf90837941a9cc25086f47a</ref>]]
[[File:CVC Plant list.PNG|365px|thumb|link=https://cvc.ca/document/plant-list-native-plants-for-rain-ready-landscapes/?access=0fa290a78fd5934ad7848f934da7322d|CVC's recent 'Rain-ready' guide for native plants in Ontario that can be selected for a variety of LID features to help both reduce flood risk occurrences and improve stormwater quality. <ref>CVC. 2022. Native Plants for Rain-ready Landscapes. Plant these native wildflowers, grasses, shrubs and groundcovers to help manage stormwater – beautifully. cvc.ca/GreenYourProperty. https://cvc.ca/document/plant-list-native-plants-for-rain-ready-landscapes/?access=0fa290a78fd5934ad7848f934da7322da</ref>]]
#[[Rain Gardens]] - planted shallow depression with rainwater collected from roofs, rain barrel overflows/[[rainwater harvesting]] devices and allows water to drain into the surrounding ground within 24 hrs. Generally landscaped with a variety of suitable native plants, that can also benefit pollinator species.
#[[Rain Gardens]] - planted shallow depression with rainwater collected from roofs, rain barrel overflows/[[rainwater harvesting]] devices and allows water to drain into the surrounding ground within 24 hrs. Generally landscaped with a variety of suitable native plants, that can also benefit pollinator species.
===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 utilized 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 above under the [[plant lists#Plant Selection|Plant Selection]] section includes 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 utilized 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 above under the [[plant lists#Plant Selection|Plant Selection]] section includes recommended species for LID practices likely to receive road or parking lot runoff.
The are at least four halophytic grass species native to Ontario. These plants are adapted to growing in saline conditions. Prairie cord grass (''Sporobolus michauxianus'') and side-oats grama (''Bouteloua curtipendula'') are excretor halophytes meaning that they take up salt from the soil then disperse it via wind to the environment. Switch grass (''Panicum virgatum'') and sand dropseed (''Sporobolus cryptandrus'') are accumulator halophytes meaning that they take up salt from the soil then store it in their aboveground tissues. For more information on these halophyte species, please see the [[Plant lists#Plant Selection|plant selection]] section under [[Graminoids: List|select tall grasses]].
===Compaction and pollution tolerance ===
===Compaction and pollution tolerance ===
! Organization !! Coverage !! Types of Material !! Website
! Organization !! Coverage !! Types of Material !! Website
|-
|-
| Credit Valley Conservation || Ontario || Native Grasses, Ferns, Shrubs, Small Trees || https://cvc.ca/wp-content/uploads/2022/03/com_lo_rain-ready-guide_20220328-FINAL3.pdf
| Credit Valley Conservation || Ontario || Native Grasses, Ferns, Shrubs, Small Trees || https://cvc.ca/document/plant-list-native-plants-for-rain-ready-landscapes/?access=8fb53274fcf90837941a9cc25086f47a
|-
|-
| City of Toronto || Southern Ontario - Specifically Richmond Hill ([http://planthardiness.gc.ca/?m=22&lang=en&prov=Ontario&val=R or any Municipality located in Zone 5B]) || Native and non-native Grasses, Ferns, Shrubs, Trees, Herbaceous, Graminoids, and Vines || https://www.toronto.ca/wp-content/uploads/2017/11/9844-2017_V-1.0_CoT-Green-Streets_Vegetation-Selection-Tool.xlsx
| City of Toronto || Southern Ontario - Specifically Richmond Hill ([http://planthardiness.gc.ca/?m=22&lang=en&prov=Ontario&val=R or any Municipality located in Zone 5B]) || Native and non-native Grasses, Ferns, Shrubs, Trees, Herbaceous, Graminoids, and Vines || https://www.toronto.ca/wp-content/uploads/2017/11/9844-2017_V-1.0_CoT-Green-Streets_Vegetation-Selection-Tool.xlsx