Colchicum autumnale L.
Colchicum autumnale, commonly known as Naked ladies, belongs to the group of bulbous and tuberous plants.
Colchicum autumnale was described by Carl Linnaeus in 1753. The name is considered as validly published.
The plants reach heights of 10 to 15 centimetres.
Colchicum autumnale is semi-deciduous. The green, simple leaves are basal. They are linear with entire margins and parallel venation.
Flowers and Fruits
Colchicum autumnale produces solitary light-purple cup-shaped flowers from October to November.
The plants produce septicidal capsules.
Colchicum autumnale is native to the whole of Europe with the exception of northern Europe and is naturalized in Northern Europe.
The plants prefer a sunny situation on moderately moist soil. The substrate should be sandy loam. They tolerate temperatures down to -29Â°C (USDA zone 5).
Classification after Prof. Dr. Sieber
- open areas
- woodland borders (soil usually rich in humus)
The recommended planting distance is 30 centimetres, the plants are best planted in groups of 3 to 10. Suited as bee pasture.
Maintenance and Propagation
- Plant 20 centimetres deep.
Propagate by bulblets.
Colchicum autumnale 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.