Campanula americana L.
Campanula americana belongs to the group of annual and biennial plants.
Campanula americana was described by Carl Linnaeus in 1753. The name is considered as validly published.
Campanula americana is a species in the genus Campanula which contains approximately 503 to 622 species and belongs to the family of the Campanulaceae (Bellflower Family). The type species of the genus is Campanula latifolia.
The comparatively fast-growing plants reach heights of 60 to 200 centimetres, they have a erect habit and produce a single stem. The main growing season is from spring to fall.
Campanula americana is deciduous. The simple leaves are alternate. They are lanceolate, serrulate and petiolate. The foliage is porous.
Flowers and Fruits
Campanula americana produces spikes of showy, blue five-stellate flowers from June to September.
The plants produce only few brown fruits from summer to autumn.
The plants prefer a shady situation on moist soil. They prefer soil with a pH between 5,5 and 7,5 and need a soil depth of at least 20 centimetres for good growth. They need a frost-free period of at least 23 weeks.
Tolerance of special soil conditions
- none: soil salinity
- low: drought
- medium: anaerobic soil, calcareous soil
The recommended planting distance is 60 to 90 centimetres.
Maintenance and Propagation
Propagate by sowing.
Pests and Diseases
- Walter Erhardt, Erich GÃ¶tz, Nils BÃ¶deker, Siegmund Seybold: Der groÃe Zander. Eugen Ulmer KG, Stuttgart 2008, ISBN 978-3-8001-5406-7. (Ger.)
- Christoper Brickell (Editor-in-chief): RHS A-Z Encyclopedia of Garden Plants. Third edition. Dorling Kindersley, London 2003, ISBN 0-7513-3738-2.