Allium decipiens
Allium decipiens
Allium decipiens
Ornamental Onion, Flowering Garlic
Perfect. Ready to bloom again for the second year.
Boris, 20/02/2025
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Description
Allium decipiens is a species with multiple faces, found in the forests of Central Asia. Classified in the category of ornamental garlic, it is a rare and elegant bulbous plant. In spring, it offers a white or lavender-pink hemispherical umbel pierced with green nuances and composed of hundreds of small flowers. This garlic possesses the charm of wild plants. It is vigorous and perennial in well-drained soils. It appreciates the shade of the undergrowth, and tolerates summer drought well.
Originally from China and Central Asia, particularly Crimea, Allium decipiens grows in deciduous forests and undergrowth. This rarely cultivated species includes numerous subspecies distinguished mainly by the colour of the flowers. They range in nature from greenish-white to lavender-pink and are sometimes tinged with pale-lilac. The inflorescences, perched at 1m (3ft) in height, correspond to large rounded umbels measuring up to 8cm (3in) in diameter. They are made up of numerous star-shaped flowers with green central veins. This flowering occurs between May and June. The glossy foliage consists of 4 to 6 basal, linear, and thin leaves, with a bright green colour. The foliage sometimes yellows and disappears at the same time as the flowering, sometimes a little later. This is a good adaptation to hot and dry summer conditions.
Easy to cultivate, elegant, and light, Allium decipiens appreciates any type of well-drained moist soil during its growing period. It prefers a shady or morning sun location. Plant it in flower beds, borders, or pots on a balcony or patio. Use its flowers to add freshness to spring bouquets. Alternatively, use dried flowers in Christmas decorations for a unique touch. Plant them in groups of 5 among ornamental grasses and perennials, or under a cluster of flowering bushes. Plant them on the edge of the undergrowth with boxwood bushes trimmed into balls for a spectacular sculptural effect.
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Allium decipiens in pictures
Plant habit
Flowering
Foliage
Botanical data
Allium
decipiens
Amaryllidaceae
Ornamental Onion, Flowering Garlic
Cultivar or hybrid
Planting and care
Allium decipiens is an ornamental garlic that is easy to grow in shaded areas. Plant it preferably before the end of October so that it has time to establish itself properly. It is sensitive to winter humidity and waterlogged soil. Plant in well-drained, humus-rich soil. It is content with dry soil in summer. Plant at a depth of 10 or 15cm (4 or 6in), spaced 10cm (4in) apart. It is undemanding, and can thrive in poor soil.
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).
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 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.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.
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