Green Infrastructure Installation

Construction Notices

Construction Notices will be posted closer to the date of construction.

Project Maps

The maps below show the streets on which the bioswales will be installed.

 

 

 

 

 

 

Public Consultation

As part of the design of the bioswales, residents along identified streets will have the opportunity to select the type of vegetation that will be installed by the contractor. The options are:

1. Purples, Pinks, Whites Garden
2. Oranges, Yellows, Reds Garden
3. Sod

(N) Native hardy species
(C) Cultivar / Hybrid of a native hardy species
(O) Non-native naturalized hardy species
(S) Shrubs and taller growing species – avoid planting in areas where views may be obstructed (e.g. sightlines between pedestrians and vehicles at intersections)

Bioswale Plant Palette

Option 1: Purple, Pinks, White

Zone 1: Perimeter Planting (Sample Planting Palette)

 

 

Additional Species:

1. Carex pensylvanica Oak sedge (N)
2. Myrica pensylvanica Northern Bayberry (N)(S)
3. Rosa rugosa ‘Foxi Pavement’ Foxy Pavement Rose (C)(S)

The perimeter zone provides a transition from the bioswale to the adjacent area. Selected plants thrive in urban conditions (tolerant of salt spray and other pollutants), and are both drought tolerant as well as able to withstand occasional wet conditions.

Zone 2: Slope Planting (Sample Planting Palette)

 

Additional Species:

1. Ceanothus americanus New Jersey tea (N)(S)
2. Myrica gale Sweet Gale (N)(S)
3. Rhus aromatica Fragrant Sumac (N)(S)

Planting to the sides of the bioswale are tolerant of wetter conditions and help stabilise the slopes.  Plants are selected for visual interest in colour and form, as well as biodiversity and wildlife benefit with species that attract pollinators (bees and butterflies).

Zone 3: Low Point Planting (Sample Planting Palette)

 

Additional Species:

1. Acorus calamus ‘variegatus’ Sweet Flag (O)
2. Mimulus ringens Monkey Flower (N)

Plant material for this area must be the most tolerant to temporal flooding and wet conditions. Plants selections are naturally found in or adjacent to wetlands and are native species to Ontario.

Bioswale Planting Zones

Zone 1: Perimeter Planting

Anemone canadensis (Canada Anemone)
H: 0.6m, S: 0.6m (N)

Carex pensylvanica (Oak sedge)
H: 0.3m, S: 0.45m, (N)

Echinacea pupurea  (Purple Coneflower)
H: 0.6m, S: 0.6m, (N)

Liatris spicata (Dense Blazing Star)
H: 1.5m, S: 0.3m, (N)

Myrica pensylvanica (Northern Bayberry)
H: 2m, S: 2m, (N)(S)

Pycnanthemum virginianum (Virginia Mountain Mint)
H: 1.2m, S: 0.3m, (N)(S)

Rosa rugosa (Foxy Pavement Rose)
H: 0.75m, S: 0.5m, (C)(S)

Zone 2: Slope Planting

Carex crinita (Fringed sedge)
H: 0.9m, S: 0.6m, (N)

Ceanothus americanus (New Jersey tea)
H: 1.5m, S: 0.3m, (N)(S)

Chelone glabra (White Turtlehead)
H: 1.5m, S: 0.3m, (N)(S)

Eupatorium maculatum (Spotted Joe-pye)
H: 1.8m, S: 0.6m, (N)(S)

Myrica gale (Sweet gale)
H: 1.25m, S: 1m, (N)(S)

Rhus aromatica (Fragrant Sumac)
H: 2m, S: 2 – 3m, (N)(S)

Veronicastrum virginicum (Culver’s Root)
H: 1.5m, S: 0.3m, (N)(S)

Zone 3: Low Point Planting

Acorus calamus ‘variegatus’ (Sweet Flag)
H: 0.6m, S:0.6m, (O)

Carex vulpinoidea (Fox Sedge)
H: 0.9m, S: 0.6m, (N)

Eupatorium perfoliatum (Boneset)
H: 1.5m, S: 1m, (N)

Mimulus ringens (Monkey Flower)
H: 0.9m, S: 0.9m, (N)

Symphyotrichum puniceum (Swamp Aster)
H: 1.5m, S: 0.6m, (N)(S)

Thalictrum pubescens (Tall Meadow-rue)
H: 2.0m, S: 0.9m, (N)(S)

Notes:

1. All species are to be salt tolerant.
2. Planting is not to obstruct sightlines. Lower growing plants (grow to less than 600mm (2 feet) tall) shall be used at intersections and road crossing to maintain visibility between motorists and pedestrians.
3. Plantings to be a minimum 460mm (1 ½ feet) away from sidewalks and roads. More space is required for larger species to allow space for plants to grow to their full size without encroaching on the sidewalk.
4. A fixed edge treatment, such as a paving band or flexible plastic edge, may be used to maintain clean boundaries between bioswale planting and adjacent areas, such as lawns, for ease of maintenance.
5. A mix of shorter and taller growing species, including woody shrubs and species that ‘dry back’ (e.g., retain seedheads all year), are to be planted for variation and seasonal interest.

Winter Interest Planting

 

Option 2: Oranges, Yellows, Red

Zone 1: Perimeter Planting (Sample Planting Palette)

 

Additional Species:

1. Carex pensylvanica Oak sedge (N)
2. Ilex verticillata ‘Berry Poppins’ Winterberry (C)(S)
3. Myrica pensylvanica Northern Bayberry (N)(S)

The perimeter zone provides a transition from the bioswale to the adjacent area. Selected plants thrive in urban conditions (tolerant of salt spray and other pollutants), and are both drought tolerant as well as able to withstand occasional wet conditions.

Zone 2: Slope Planting (Sample Planting)

 

 

Additional Species:

1. Hypericum kalmianum Kalm St. John’s Wort (N)
2. Pennisetum alopecuroides ‘Cassian’ Cassian Fountain Grass
3. Rhus aromatica Fragrant Sumac (N)(S)

 

Planting to the sides of the bioswale are tolerant of wetter conditions and help stabilise the slopes. Plants are selected for visual interest in colour and form, as well as biodiversity and wildlife benefit with species that attract pollinators (bees and butterflies).

Zone 3: Low Point Planting (Sample Planting)

 

Additional Species:

1. Acorus calamus ‘variegatus’ Sweet Flag (O)
2. Carex muskingumensis Palm Sedge (N)

Plant material for this area must be the most tolerant to temporal flooding and wet conditions. Plants selections are naturally found in or adjacent to wetlands and are native species to Ontario.

Zone 1: Perimeter Planting

Carex pensylvanica (Oak sedge)
H: 0.3m, S: 0.45m, (N)

Ilex verticillata ‘Berry Poppins’ (Winterberry)
H: 1.25m, S: 1.25m, (C)(S)

Monarda didyma (Bee Balm)
H: 0.6m, S: 0.9m, (N)

Myrica pensylvanica (Northern Bayberry)
H: 2m, S: 2m, (N)(S)

Persicaria virginiana (Virginia Jumpseed)
H: 0.9m, S: 1.2m, (N)

Rudbeckia laciniata (Cut-leaved Coneflower)
H: 1.8m, S: 0.6m, (N)

Sorgbastrum nutans (Indian Grass)
H: 1.5m, S: 0.6m, (N)(S)

 

Zone 2: Slope Planting

Elymus viginicus (Virginia Wild Rye)
H: 1.2m, S: 0.3m, (N)(S)

Euthamia graminifolia (Grass-leaf Goldenrod)
H: 1.5m, S: 0.45m, (N)(S)

Helenium autumnale (Sneezeweed)
H: 1.5m, S: 0.9m, (N)(S)

Hyerpicum kalmianum (Kalm St. John’s Wort_
H: 0.90m, S: 0.90m, (N)

Lilium michiganense (Michigan Lily)
H: 1.2m, S: 0.45m, (N)

Pennisetum alopecuroides ‘Cassian’
(Cassian Fountain Grass)
H: 0.6m, S:0.45m, (N)

Rhus aromatica (Fragrant Sumac)
H: 2m, S: 2 – 3m, (N)(S)

Zone 3: Low Point Planting

Acorus calamus ‘variegatus’ (Sweet Flag)
H: 0.6m, S: 0.6m, (O)

Andropogon gerardi (Big Bluestem)
H: 2m, S:0.6m, (N)(S)

Asclepias tuberosa (Butterfly Milkweed)
H: 0.9m, S: 0.6m, (N)

Carex muskingumensis (Palm Sedge)
H:0.6, S:0.6m, (N)

Lobelia cardinalis (Cardinal Flower)
H: 1.2m, S: 0.3m, (N)

Zizia aurea (Golden Alexander)
H: 0.9m, S: 0.9m, (N)(S)

Notes:

1. All species are to be salt tolerant.
2. Planting is not to obstruct sightlines. Lower growing plants (grow to less than 600mm (2 feet) tall) shall be used at intersections and road crossing to maintain visibility between motorists and pedestrians.
3. Plantings to be a minimum 460mm (1 ½ feet) away from sidewalks and roads. More space is required for larger species to allow space for plants to grow to their full size without encroaching on the sidewalk.
4. A fixed edge treatment, such as a paving band or flexible plastic edge, may be used to maintain clean boundaries between bioswale planting and adjacent areas, such as lawns, for ease of maintenance.
5. A mix of shorter and taller growing species, including woody shrubs and species that ‘dry back’ (e.g., retain seedheads all year), are to be planted for variation and seasonal interest.