Alphabetical Plant Listing

Campanulastrum americanum (American Bellflower)

American Bellflower, Tall Bellflower, Campanula americana, Campanula americana var. illinoensis


Native to North America, Campanulastrum americanum (American Bellflower) is an upright annual or biennial with tall flower stems clad with rough, toothed, lance-shaped green leaves. In summer, the upper portion of the stem is studded with showy, flat, star-shaped, lavender-blue flowers, 1 in. across (2.5 cm). Attractive to hummingbirds, each delicate blossom features a petal tube that elongates with age and a white ring at the throat. The flowers are borne singly or in clusters in the axils of the upper leaves. Charming and eye-catching, they will persist longer if deadheaded. Depending on when germination occurs, this plant is either an annual of a biennial. It produces foliage in the first year and flowers in the second year. American Bellflower is a lovely addition to a woodland garden where it will self-seed readily, without becoming a nuisance, and keep a charming presence in the garden.

  • Grows up to 3-6 ft. tall (90-180 cm) and 12-24 in wide (30-60 cm).
  • Thrives in full sun to part shade in rich, consistently moist, well-drained soils. Prefers part shade in warmer climates.
  • Great for rock gardens, cottage gardens, naturalized areas. Plant in groups for best visual impact.
  • No serious pest or disease issues. Keep an eye out for slugs and snails.
  • Plant seed indoors about 6-8 weeks prior to last spring frost or plant seed outdoors in late spring for bloom the following year.
  • Deadhead spent flowers to encourage new blooms. Propagate by seed.
  • Native to North America.

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Requirements

Hardiness 4 – 7
Plant Type Annuals
Plant Family Campanula - Bellflowers
Exposure Full Sun, Partial Sun
Season of Interest Summer (Early,Mid,Late)
Height 3' – 6' (90cm – 180cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 24" (60cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Native Plants United States, Midwest, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, Northeast, Maryland, New Jersey, New York, Pennsylvania, Southeast, Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, West Virginia, Southwest, Oklahoma
Attracts Hummingbirds
Garden Styles Gravel and Rock Garden, Informal and Cottage, Prairie and Meadow

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By ALong, Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 4 – 7
Plant Type Annuals
Plant Family Campanula - Bellflowers
Exposure Full Sun, Partial Sun
Season of Interest Summer (Early,Mid,Late)
Height 3' – 6' (90cm – 180cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 24" (60cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Native Plants United States, Midwest, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, Northeast, Maryland, New Jersey, New York, Pennsylvania, Southeast, Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, West Virginia, Southwest, Oklahoma
Attracts Hummingbirds
Garden Styles Gravel and Rock Garden, Informal and Cottage, Prairie and Meadow

Great Plant Combination Ideas with Campanula - Bellflowers

Guides with Campanula - Bellflowers

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