Lady Bird Johnson Wildflower Center - The University of Texas at Austin information

 Native Plant Database

Campanulastrum americanum

American bellflower, Tall bellflower

Campanulaceae (Bellflower Family)

Campanulastrum americanum (American bellflower)
Gammill, Lynn Crosby
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.

Image Gallery:

5 photo(s) available

Plant Characteristics

Duration: Annual
Habit: Herb
Leaf: Green
Size Class: 3-6 ft.

Bloom Information

Bloom Color: Blue , Purple
Bloom Time: Jun , Jul , Aug


USA: AL , AR , FL , GA , IL , IN , IA , KS , KY , LA , MD , MI , MN , MS , MO , NE , NJ , NY , NC , OH , OK , PA , SC , SD , TN , VA , WV , WI
Canada: NB
Native Distribution: Southern Ont. & NY to MN, s. to GA & LA
Native Habitat: Moist woods; shady streams; thickets

Growing Conditions

Water 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


Use Wildlife: Hummingbirds
Conspicuous Flowers: yes
Attracts: Hummingbirds

Last Update: 2015-12-04