Achillea tomentosa

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Achillea tomentosa L.

Asteraceae

Life form: perennial

Exposure: sun   3

Moisture: dry

Soil: sandy loam

Arrangement: alternate
Leaves: decidious

Shape: linear

Division: simple

Shape: many-stellate
Fruit: achene

3A / f8da21 

Inflorescence: raceme

Petals: not specified
Habit: not specified

Growth form: mat-forming

Taxonomy

Divisio:
Magnoliophyta
Subdivisio:
Magnoliophytina
Classis:
Rosopsida
Subclassis:
Asteridae
Superordo:
Asteranae
Ordo:
Asterales

Achillea tomentosa, commonly known as woolly yarrow, is a perennial.

Naming

Achillea tomentosa was described by Carl Linnaeus in 1753. The name is considered as validly published.

Taxonomy

Achillea tomentosa 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.

Characteristics

Achillea tomentosa - flowers

Growth

The perennials have a mat-forming habit and reach heights of 30 to 35 centimetres.

Leaves

Achillea tomentosa is deciduous. The mid-green, simple leaves are alternate. They are linear with pinnatifid margins. The leaves are around 5 centimetres large and have a glabrous surface.

Flowers and Fruits

Achillea tomentosa produces racemes of yellow many-stellate flowers from May to July.

The perennials produce achenes.

Root System

Distribution

Achillea tomentosa is native to France, Italy and Switzerland.

Cultivation

The perennials prefer a sunny situation on dry soil. The substrate should be sandy loam with a pH between 4 and 7,5. They tolerate temperatures down to -40°C (USDA zone 3).

Classification after Prof. Dr. Sieber

  • rockeries

Uses

Achillea tomentosa is considered a collector's perennial. The recommended planting distance is 20 to 25 centimetres, the perennials are best planted in groups of 5 to 10. Suited for rockeries and for roof greening, as well as suited as cemetery plant and as container plant.

Maintenance and Propagation

Propagate by sowing or by division.

Cultivars

Pests and Diseases

Literature

  • Walter Erhardt, Erich Götz, Nils Bödeker, Siegmund Seybold: Der große 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.

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