Achillea ptarmica L.
Achillea ptarmica, commonly known as sneezewort, is a perennial.
Achillea ptarmica was described by Carl Linnaeus in 1753. The name is considered as validly published.
Achillea ptarmica is a species in the genus Achillea which contains approximately 171 to 348 species and belongs to the family of the Asteraceae (Aster Family). The type species of the genus is Achillea millefolium.
The perennials have an upright growth and reach heights of 30 to 90 centimetres.
Achillea ptarmica is deciduous. The green, simple leaves are alternate. They are lanceolate with denticulate margins.
Flowers and Fruits
Achillea ptarmica produces racemes of white many-stellate flowers from July to September.
The perennials produce achenes.
Achillea ptarmica is native to the whole of Europe and is naturalized in North America.
The perennials prefer a sunny situation on moderately moist soil. The substrate should be loamy or loamy clay soil with a pH between 6,5 and 7,5. They tolerate temperatures down to -29Â°C (USDA zone 5).
Classification after Prof. Dr. Sieber
- open areas
The recommended planting distance is 30 to 40 centimetres, the perennials are best planted in groups of 5 to 10. Suited for cottage gardens, as well as suited as cut flowers and as bee pasture.
Maintenance and Propagation
- Divide every few years.
- water during dry periods.
Propagate by sowing or by division.
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.