Allium fistulosum

From Hortipedia
Jump to: navigation, search

Hortipedia Commons %LABEL_PRINTING QR Code

Allium fistulosum L.

Alliaceae

Life form: bulb or tuber
Usage: economic plant

Exposure: sun - Exposure: half shade   5

Moisture: dry bis Moisture: moderately moist

Soil: sandy loam - Soil: gritty loam - Soil: sandy clay - Soil: loamy clay - Soil: peat

Arrangement: basal
Leaves: decidious

Shape: linear

Division: simple

Shape: six-stellate
Fruit: loculicidal capsule

63D / e981ab 

Inflorescence: umbel

Petals: not specified
Habit: not specified

Growth form: not specified

Taxonomy

Divisio:
Magnoliophyta
Subdivisio:
Magnoliophytina
Classis:
Liliopsida
Subclassis:
Liliidae
Superordo:
Lilianae
Ordo:
Amaryllidales
[Modify]   [Versions]

Allium fistulosum, commonly known as Japanese bunching onion, Welsh onion, belongs to the group of bulbous and tuberous plants.

Contents

Naming

Allium fistulosum was described by Carl Linnaeus in 1753. The name is considered as validly published.

Taxonomy

Allium fistulosum is a species in the genus Allium which contains approximately 943 to 1011 species and belongs to the family of the Alliaceae (Garlic Family). The type species of the genus is Allium sativum.

Characteristics

Allium fistulosum - habitus
Allium fistulosum - inflorescence

Growth

The plants are comparatively fast-growing and reach heights of 45 to 60 centimetres. The plants reach a width of 30 to 60 centimetres.

Leaves

Allium fistulosum is deciduous. The mid-green, simple leaves are basal. They are linear with entire margins and parallel venation. The surface of the leaves is glabrous.

Flowers and Fruits

Allium fistulosum produces umbels of pink six-stellate flowers from June to August. The plants are hermaphroditic.

The plants carry brown loculicidal capsules.

Root System

Distribution

Allium fistulosum is native to : garden origin.

Cultivation

The plants prefer a sunny to half-shady situation on dry to moderately moist soil. The substrate should be sandy-loamy, gritty-loamy, sandy clay, loamy clay or peaty soil 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 Allium fistulosum lies especially in its fragrance. The recommended planting distance is 25 centimetres, the plants are best planted in groups of 3 to 10. Suited as bee pasture.

Maintenance and Propagation

The plants need little to no maintenance if grown under suitable conditions.

  • Cut back before seeds ripen to prevent self-seeding.


Cultivars

Pests and Diseases

Sudden wilting and pale green discolouration indicate a fungal infection (phytophthora). Remove infected plants. Avoid by improving drainage and over-fertilization.

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

Commercial Links

Personal tools
Namespaces

Variants
Actions
Navigation
Toolbox
Advertising
In other languages