Achillea ageratifolia

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Achillea ageratifolia (Sm.) Boiss.

Asteraceae

Life form: perennial

Exposure: sun   3

Moisture: dry

Soil: sandy loam - Soil: gritty loam

Arrangement: alternate
Leaves: semi-evergreen

Shape: lanceolate

Division: not specified

Shape: many-stellate
Fruit: achene

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Inflorescence: solitary

Petals: not specified
Habit: not specified

Growth form: cushion- or mound-forming

Taxonomy

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

Achillea ageratifolia, commonly known as Greek yarrow, is a perennial.

Naming

Achillea ageratifolia was already described and the name validly published by John Sibthorp and James Edward Smith. It was George Bentham and Joseph Dalton Hooker, however, who reclassified it into todays valid botanical systematics in 1873.

Taxonomy

Achillea ageratifolia 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 ageratifolia - leaves

Growth

The comparatively fast-growing perennials have a pulvinate (cushion-formig) habit and reach heights of 5 to 10 centimetres.

Leaves

Achillea ageratifolia is semi-deciduous. The silver-grey leaves are alternate. They are lanceolate. The leaves are around 5 centimetres large.

Flowers and Fruits

Achillea ageratifolia produces solitary white many-stellate flowers from June to July.

The perennials produce achenes.

Root System

Distribution

Achillea ageratifolia is native to to the mountain regions of the Balkan Peninsula.

Cultivation

The perennials prefer a sunny situation on dry soil. The substrate should be sandy-loamy or gritty-loamy soil with a pH between 8 and 10. They tolerate temperatures down to -40°C (USDA zone 3).

Classification after Prof. Dr. Sieber:

  • rockeries

Tolerance of special soil conditions

  • none: drought, waterlogging, winter dampness

Uses

Achillea ageratifolia is considered a valuable wild perennial. The recommended planting distance is 25 centimetres, the perennials are best planted in groups of 3 to 10. Suited for rockeries, as well as suited as a neighbour to roses, groundcover, container plant and as bee pasture.

Maintenance and Propagation

  • Winter protection from late frost.
  • Cut back after flowering.

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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