refining bioretention design -the plants- · 6/20/2012 · from the msd bioretention online...
TRANSCRIPT
![Page 1: Refining Bioretention Design -the plants- · 6/20/2012 · From the MSD Bioretention Online Toolbox: Vegetation The primary value that vegetation provides is a deep root structure](https://reader034.vdocuments.mx/reader034/viewer/2022051919/600b2ba964bb757d36745aae/html5/thumbnails/1.jpg)
MSD’s
‘Formal’
Plant List
for Bioretention
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www.shawnature.org
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www.stlmsd.com
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From the MSD Bioretention Online Toolbox:
Vegetation The primary value that vegetation provides is a deep root
structure that maintains drainage through the soil media.
Vegetation should promote social acceptance: bioretention is a
landscape feature, as well as a stormwater BMP.
Plant Requirements: •Plants of Missouri and S. Illinois ecotype are required
•It is recommended that a minimum of 5 grass/sedge species and 8
forb species be provided for each BMP.
•Deviation to this is acceptable for aesthetics if desired for more
formal planting areas.
In the MSD Landscape Guide:
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Plant Lists:
•Bioretention and
Organic Filters:
Informal and Formal
•Wet ponds
•Wetlands
•Infiltration Basins/Dry
Swales
•Surface Sand Filters
•List for seeding
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Formal or informal???
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The ‘Formal’ list = 31 grasses and forbs; 23 shrubs and trees
Based on:
•3-4 season interest
•Longevity
•Compact habit
•Available in nurseries
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• Typically has a higher diversity of species
• Need to maintain a tight design over time
• More species for maintenance crew to identify
• =higher maintenance
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First Community Credit Union
•Planted with informal plant list
•Allowed to reseed, spread
And move around/fill in
Planted with formal plant list
More maintenance to maintain each plant mass
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upper
slope
lower
slope
pond edge
(and permanent water)
(submerged)
Lower maintenance
can be achieved
with
Right plant,
Right place
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Shade plant in
full sun site…
Does not fulfill an
aesthetic function!
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Hancock Elementary School
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Lion’s Choice
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Missouri Botanical Garden
East Parking Lot Bioretention
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SWT Design
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Maryville University
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Golden Corral
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Treasure Room parking lot – Chesterfield Valley