Baptisia tinctoria (L.) R.Br.
Baptisia tinctoria is a perennial.
Baptisia tinctoria was already described and the name validly published by Carl Linnaeus. It was Ãtienne Pierre Ventenat, however, who reclassified it into todays valid botanical systematics .
Baptisia tinctoria is a species in the genus Baptisia which contains approximately 32 to 42 species and belongs to the family of the Fabaceae (Legume Family). The type species of the genus is Baptisia alba.
The perennials reach heights of 60 to 100 centimetres, the main growing season is in summer. They have a erect habit.
Baptisia tinctoria is deciduous. The mid-green, ternate leaves are alternate. The foliage is porous.
Flowers and Fruits
Baptisia tinctoria produces racemes of showy, yellow pea-shaped flowers from July to August.
The perennials produce only few brown legumes from summer to autumn.
Baptisia tinctoria is native to Ontario, the Northeast of the US, the central Northeast of the US, the Southeast of the US and Florida.
The perennials prefer a sunny situation on dry to moderately moist soil. The substrate should be sandy-loamy or sandy clay and comparatively poor with a pH between 5,8 and 7. The plants need a soil depth of at least 41 centimetres for good growth. They tolerate temperatures down to -35Â°C (USDA zone 4) and need a frost-free period of at least 27 weeks.
Tolerance of special soil conditions
- none: soil salinity, anaerobic soil
- high: drought, calcareous soil
Maintenance and Propagation
The plants usually need very little maintenance.
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.