Corydalis cava, commonly known as Hollowroot, Bulbous Corydalis, is a perennial.
Corydalis cava was already described and the name validly published by Carl Linnaeus. It was August Friedrich Schweigger and Heinrich Friedrich Franz KÃ¶rte, however, who reclassified it into todays valid botanical systematics .
Corydalis cava is a species in the genus Corydalis which contains approximately 640 to 698 species and belongs to the family of the Fumariaceae (Fumitory Family). The type species of the genus is Corydalis bulbosa.
The perennials reach heights of 10 to 20 centimetres.
Corydalis cava is deciduous. The bluish green, bipinnate leaves are alternate. The obovate leaflets are petiolate.
Flowers and Fruits
Corydalis cava produces racemes of pink tubular flowers from March to May.
Corydalis cava is native to the whole of Europe with the exception of the British Isles, Turkey, the Caucasus and northern Iran.
The perennials prefer a half-shady situation on moist soil. The substrate should be sandy clay with a pH between 8 and 10. They tolerate temperatures down to -23Â°C (USDA zone 6).
Classification after Prof. Dr. Sieber
- woods (soil usually rich in organic material)
The recommended planting distance is 20 to 25 centimetres. Suited as bee pasture.
Maintenance and Propagation
Propagate by sowing.
Corydalis cava is toxic.
Please read the health issues note!
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.