Appendix L
Maintenance Level Guidelines
Upland Slope Buffers
Big Bluestem ( Andropogon gerardii )
-Prefers moist soil
Mature Height: 3-9ft
-Used to stabilize soil and slow surface runoff. -Also used for upland slope buffer stabilization
Smooth Blue Aster ( Aster laevis )
-Can tolerate wet-mesic conditions for short
Mature Height: 3-5ft
durations -Used to slow storm water runoff
New England Aster ( Aster novae-angliae )
-Prefers moist soil to wet-mesic conditions -Used in upper shoreline zones and for upland slope buffer stabilization *Can be aggressive and form monoculture
Mature Height: 1-4ft
Common Beggarsticks ( Bidens frondosa )
-Prefers moist soil
Mature Height: 8in-3ft
-Used in upper shoreline zones and upland slope buffers
Side-Oats Grama ( Bouteloua curtipendula )
-Mesic to dry
Mature Height: 1-3ft
-Dense root system works well on steep slopes to prevent erosion
Wild Bergamot ( Monarda fistulosa )
- Mesic soil. Minimal flooding tolerance
Mature Height: 3ft
Black-Eyed Susan ( Rudbeckia hirta )
-Mesic to wet, limited flood tolerance -Extensive fibrous root system stabilizes soil
Mature Height: 1-2ft
Spiderwort ( Tradescantia ohiensis )
-Tolerance of early seasonal flooding for short
Mature Height: 1-2ft
durations -Drought tolerant
Prairie Cordgrass ( Spartina pectinata )
-Prefers wet to saturated soil up to 3 inches of flooding -Used in upper shoreline zones and lower
Mature Height: 5-7ft
shorelines
*Competes with Reed Canary Grass(a plus)
Common Iron Weed ( Vernonia fasciculate )
-Wet soil. Tolerates flooding of 2-3 inches in spring
Mature Height: 5ft
-Stabilizes upper shorelines
Purple Prairie Clover ( Petalostemum purpureum )
-Deep taproot with extensive vertical branching helps stabilize sandy soils and dry slopes -Species does not tolerate flooding
Mature Height: 1-3 ft
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Naperville Park District | 2023 MASTER PLAN
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