Armoracia rusticana

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Armoracia rusticana G.Gaertn., B.Mey. & Scherb.

Brassicaceae

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

Exposure: sun   5

Moisture: moist

Soil: gritty loam

Arrangement: alternate
Leaves: decidious

Shape: oblanceolate

Division: simple

    

Shape: cruciform
Fruit: silicle

N999D / ffffff 

Inflorescence: raceme

Petals: single
Habit: not specified

Growth form: stemless

Taxonomy

Divisio:
Magnoliophyta
Subdivisio:
Magnoliophytina
Classis:
Rosopsida
Subclassis:
Dilleniidae
Superordo:
Violanae
Ordo:
Capparales

Armoracia rusticana is a perennial.

Naming

Taxonomy

Armoracia rusticana is a species in the genus Armoracia which contains approximately 4 to 7 species and belongs to the family of the Brassicaceae (Mustard Family).

Characteristics

Armoracia rusticana - habitus
Armoracia rusticana - flowers
Armoracia rusticana - inflorescence
Armoracia rusticana - roots

Growth

The comparatively fast-growing perennials have a stemless growth and reach heights of 50 to 150 centimetres. The plants reach a width of 40 to 80 centimetres.

Leaves

Armoracia rusticana is deciduous. The green, simple leaves are alternate. They are oblanceolate and sessile with denticulate margins and pinnate venation. The surface of the leaves is glabrous. They turn an attractive yellow in autumn.

Flowers and Fruits

Armoracia rusticana produces racemes of white cruciform flowers from May to August.

The perennials produce green silicles in autumn.

Root System

The plants form root tubers.

Distribution

Armoracia rusticana is native to the European Russia (Belarus, the Ukraine, Moldova, Crimea) and is naturalized in Europe, the Caucasus and North America.

Cultivation

The perennials prefer a sunny situation on moist soil. The substrate should be gritty loam with a pH between 6,5 and 7,5. They tolerate temperatures down to -29°C (USDA zone 5).

Classification after Prof. Dr. Sieber

  • open areas

Tolerance of special soil conditions

  • high: city climate

Uses

The ornamental value of Armoracia rusticana lies especially in its fragrance. The recommended planting distance is 60 centimetres, the perennials are best planted in groups of 3 to 5. Suited as bee pasture.

Maintenance and Propagation

  • If possible the plants should not be transplanted.
  • Cut back faded flowering shoots.


Cultivars

Pests and Diseases

Mealy excreta on leaves, flowers or fruits indicate in infestation with caterpillars. Crush eggs, handpick and destroy caterpillars. Also apply insecticide or use biological pest control.

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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