Alcea rosea

From Hortipedia
Jump to: navigation, search

Hortipedia Commons %LABEL_PRINTING QR Code

Alcea rosea L.

Malvaceae

Life form: perennial
Usage: economic plant / Usage: ornamental plant

Exposure: sun   4

Moisture: moderately moist

Soil: sandy loam - Soil: gritty loam

Arrangement: alternate
Leaves: decidious

Shape: palmately lobed

Division: simple

Shape: funnel-shaped
Fruit: schizocarp

63D / e981ab 

Inflorescence: raceme

Petals: single
Habit: erect

Growth form: erect

Taxonomy

Divisio:
Magnoliophyta
Subdivisio:
Magnoliophytina
Classis:
Rosopsida
Subclassis:
Dilleniidae
Superordo:
Malvanae
Ordo:
Malvales

Alcea rosea is a perennial.

Naming

Alcea rosea was described by Carl Linnaeus in 1753. The name is considered as validly published.

Taxonomy

Alcea rosea is a species in the genus Alcea which contains approximately 85 to 97 species and belongs to the family of the Malvaceae (Mallow Family).

Characteristics

Alcea rosea - habitus
Alcea rosea - leaves
Alcea rosea - flowers

Growth

The comparatively long-lived perennials have an upright growth and reach heights of 1,5 to 2,5 metres. The plants reach a width of 30 to 60 centimetres.

Leaves

Alcea rosea is deciduous. The bluish green, simple leaves are alternate. They are palmately lobed and petiolate with dentate margins and palmate venation. The surface of the leaves is pilose.

Flowers and Fruits

Alcea rosea produces racemes of erect, pink funnel-shaped flowers from June to October. The plants are hermaphroditic.

The perennials produce schizocarps.

Root System

Distribution

Alcea rosea is native to Southwest Asia and the Balkan Peninsula and is naturalized in the whole of Europe with the exception of Sicily.

Cultivation

The perennials prefer a sunny situation on moderately moist soil. The substrate should be sandy-loamy or gritty-loamy soil with a pH between 6,5 and 7,5. They tolerate temperatures down to -35°C (USDA zone 4).

Classification after Prof. Dr. Sieber

  • flower beds (rich soil)

Uses

The recommended planting distance is 70 centimetres, the perennials are best planted in groups of 3 to 5. Suited for cottage gardens and for beds and borders, as well as suited as cut flowers and as bee pasture.

Maintenance and Propagation

Cultivars

Pests and Diseases

Brown, orange or yellowish pustules on shoots and on the leaves lower surfaces are very likely caused by a fungal infestation (rust). Remove affected parts and apply fungicide. Also improve ventilation and reduce humidity.

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.

Non-commercial Links

This might also interest you

Commercial Links