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Crooked-stemmed Aster
Symphyotrichum prenanthoides

Crooked-stemmed Aster is a favorite of native bees. It prefers medium to wet soil conditions and can be found along stream banks and wood edges.

USDA symbol: SYPR6

General Information

Plant TypeForb
Height3 feet
Light ExposureSun, Part Sun
Soil MoistureMedium
Bloom ColorPurple
Crooked-stemmed Aster (Crooked-stemmed Aster<div><em class="small">Symphyotrichum prenanthoides</em></div>)
Photo credit: Minnesota Wildflowers (Click to enlarge)


Flooding / Inundation ToleranceModerate
General Resilience7
Salt ToleranceLow
Stress ToleranceAcidic Conditions, Alkaline Conditions

Pollinator Value: High

Bloom MonthsSeptember to October
Larval Host ofBees
Specific Pollinators HostedNumerous bee species
Pollinator BenefitInsect Pollinated, Provides Nectar, Stem Nesting, Supports Generalists

Project Planning

Project TypeBoulevard, Shoreline Buffer
Coefficient of Conservatism8
Herbivore SensitivityMedium
Rate of SpreadMedium
Soil StabilizationShallow
Vegetative ReproductionClonal


CountyFillmore, Goodhue, Houston, Wabasha, Winona
EcoregionDriftless Area, North Central Hardwood Forests, Northern Lakes and Forests, Western Cornbelt Plains
Approximate Eco ProvinceEastern Broadleaf Forest, Laurentian Mixed Forest, Prairie Parkland