Campanulastrum americanum (L.) Small
American bellflower, Tall bellflower
Campanulaceae (Bellflower Family)
Synonym(s): Campanula americana, Campanula americana var. illinoensis
USDA Symbol: caam18
A 3-4 ft., erect plant with leafy stems. The upper portion of the stem is lined with showy, lavender-blue, five-petaled flowers. Radially symmetrical, light blue to violet flowers borne singly or in clusters in axils of upper leaves and forming an elongated, spike-like cluster.
In spite of the common name and the genus name, derived from the Latin campana (bell), the flowers of this species are usually flat, not bell-shaped as are many others in this family. Tall Bellflower was formerly included in the genus Campanula.
From the Image Gallery
Bloom InformationBloom Color: Blue , Purple
Bloom Time: Jun , Jul , Aug
DistributionUSA: AL , AR , FL , GA , IA , IL , IN , KS , KY , LA , MD , MI , MN , MO , MS , NC , NE , NJ , NY , OH , OK , PA , SC , SD , TN , VA , WI , WV
Native Distribution: Southern Ont. & NY to MN, s. to GA & LA
Native Habitat: Moist woods; shady streams; thickets
Growing ConditionsWater Use: Medium
Light Requirement: Part Shade
Soil Moisture: Moist
Soil pH: Circumneutral (pH 6.8-7.2)
CaCO3 Tolerance: Medium
Soil Description: Rich, moist soils.
Conditions Comments: Not Available
BenefitUse Wildlife: Hummingbirds
Conspicuous Flowers: yes
Value to Beneficial InsectsSpecial Value to Native Bees
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
PropagationDescription: Seeds germinate easily. Shallow plant the small seeds in spring for a biennial plant or fall for an annual.
Seed Collection: Not Available
Seed Treatment: No treatment necessary.
Commercially Avail: yes
Find Seed or Plants
View propagation protocol from Native Plants Network.
National Wetland Indicator Status
From the National Suppliers DirectoryAccording to the inventory provided by Associate Suppliers, this plant is available at the following locations:
ArcheWild Native Nurseries - Quakertown, PA
Prairie Nursery - Westfield, WI
BibliographyBibref 946 - Gardening with Prairie Plants: How to Create Beautiful Native Landscapes (2002) Wasowski, Sally
Bibref 1294 - The Midwestern Native Garden: Native Alternatives to Nonnative Flowers and Plants An Illustrated Guide (2011) Adelman, Charlotte and Schwartz, Bernard L.
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Additional resourcesUSDA: Find Campanulastrum americanum in USDA Plants
FNA: Find Campanulastrum americanum in the Flora of North America (if available)
Google: Search Google for Campanulastrum americanum
MetadataRecord Modified: 2015-12-04
Research By: TWC Staff