Alliaria petiolata (M.Bieb.) Cavara & Grande
Alliaria petiolata belongs to the group of annual and biennial plants.
Alliaria petiolata was already described and the name validly published by Friedrich August Marschall von Bieberstein. It was Fridiano Cavara and Loreto Grande, however, who reclassified it into todays valid botanical systematics in 1913.
The plants are comparatively long-lived and reach heights of 30 to 90 centimetres.
Alliaria petiolata is deciduous. The simple leaves are alternate. They are cordate, crenate and petiolate.
Flowers and Fruits
Alliaria petiolata produces racemes of white cruciform flowers from April to June.
In summer the plants carry siliques.
Alliaria petiolata is native to the whole of Europe, Turkey, Cyprus, Syria, the Caucasus, Iran, West-Siberia, Central Asia, Afghanistan, the Himalaya, Pakistan and Northwest Africa and is naturalized in North America.
The plants prefer a half-shady situation on fresh to moist soil. The substrate should have a pH between 6,5 and 7,5. They tolerate temperatures down to -23Â°C (USDA zone 6).
Classification after Prof. Dr. Sieber
- open areas
- woodland borders (soil usually rich in humus)
- woods (soil usually rich in organic material)
The ornamental value of Alliaria petiolata lies especially in its fragrance. The recommended planting distance is 50 centimetres, the plants are best planted in groups of 5 to 10. Suited as bee pasture.
Maintenance and Propagation
- Cut back after flowering to prevent self-seeding.
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.