Allium obliquum
Allium obliquum
Allium obliquum
Allium obliquum
Allium obliquum
Allium obliquum
Allium obliquum
Allium obliquum
Allium obliquum
Lopsided onion, Ornamental Onion
There is a little plant that smells like garlic that has some leaves. What about the others?
REINE, 06/06/2024
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Description
Allium obliquum, also known as slanted garlic or twisted garlic, is an unusual ornamental garlic that is very hardy and has ornamental, medicinal, and culinary value. Its flowers, which appear in summer, display an extremely bright yellow-green colour. Easy to combine in romantic or naturalistic flower beds, this bulbous plant also has a place in the vegetable garden. Its twisted leaves have a pronounced garlic flavour that adds seasoning to all dishes, whether raw or cooked. Like all ornamental garlic, it thrives in the sun, in well-drained soil that is preferably limestone and dry in summer.
Allium obliquum belongs to the Amaryllidaceae family. It is a widespread botanical species from Eastern Europe to Siberia, in temperate regions of Asia and the Middle East. This bulbous plant has a unique growth cycle: its foliage dries up and disappears during summer, once the bulb has replenished its nutrient reserves. It emerges from the ground at the end of autumn or early winter. To withstand cold and damp weather, its bulb must be deeply buried in well-drained soil.
Its foliage does not exceed 40cm (16in) in height. It consists of narrow, ribbon-like leaves, 1 to 2cm (1in) wide. They are distinctly twisted, highly aromatic, and grey-green in colour. Flowering from June to August, depending on the climate. A cylindrical floral stem measuring 60 to 70cm (24 to 28in) in height emerges from among the leaves. A spherical umbel inflorescence with a diameter of 4 to 5cm (2in) develops at its tip. It is composed of numerous tiny yellow-green flowers that become fluffy when they open, revealing a cluster of prominent stamens. This nectar-rich and honey-producing flowering is extremely popular with bees and butterflies.
Allium obliquum can be planted in rock gardens, grouped in flower beds, or in pots. It should always be planted in light and well-drained soils, even fairly poor, sandy, gravelly, and limestone ones, in a sunny and warm location. Once established, it naturalises well. Combine it with late tulips, lilies, and roses, or graceful perennials like lady's mantle, sage, perennial geraniums, and catmint for a unique scene.
Allium obliquum in pictures
Plant habit
Flowering
Foliage
Botanical data
Allium
obliquum
Amaryllidaceae
Lopsided onion, Ornamental Onion
Allium luteum, Allium ramosum, Moenchia obliqua
Eastern Europe
Planting and care
Allium obliquum should be planted in autumn in light and well-drained soil in full sun, spaced 15 to 20cm (6 to 8in) apart and at a depth of 2 to 3 times the height of the bulb. It dreads clayey and wet soils in both winter and summer. It prefers slightly limestone soils. For a beautiful mass effect, group the bulbs in sets of 7. Remove faded flowers and let it naturalise. Fertilise during flowering with a special bulb fertiliser. To prevent white rot, soak the bulbs in a solution of diluted bleach at 10%. It can also be grown in a pot with good, loose and well-drained compost.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.