Alyssum argenteum
Alyssum argenteum
Alyssum argenteum
Silver Alyssum
Lovely young plants, fast delivery and perfectly packaged products
MURIELLE, 20/05/2025
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This plant carries a 12 months recovery warranty
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We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
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Description
Alyssum argenteum, also known as silver alyssum, is a golden basket alyssum that blooms in the European Alps. This perennial species, rare in cultivation, blooms a little later than others, in June-July. In rocky areas, it forms a small loose clump that spreads over time and often self-seeds spontaneously. Its foliage has silver-grey reflections and its flowering is bright golden yellow.
Alyssum argenteum belongs to the Brassicaceae family. It is a species native to the alpine regions of Europe, widespread in southeastern France, northwestern Italy, and southern Switzerland. In the wild, it is found on rocky soils up to 1300 m (4265ft) altitude. It is a perennial plant that reaches about 35 cm (14in) in height and 40-50 cm (16-20in) in width. Its slender stems bear small elliptical leaves with entire margins and pointed tips. Their colour is greenish-grey on the upper side, and the underside is downy and white. They persist more or less in winter. Flowering usually begins in June. It takes the form of inflorescences called corymbs, which are slightly loose flattened clusters. Each corymb is composed of small clusters of yellow flowers with 4 petals.
Golden basket alyssums thrive in well-drained soils, even rocky and occasionally dry ones. They are small plants perfect for covering the tops of walls, spaces between rocks in rockeries, similar to aubrietas, silver baskets, and bellflowers. They adorn the base of perennials and small bushes like rock conifers or caryopteris. They can also be planted along pathways, always in well-drained soil. They also perform very well in pots and containers.
Alyssum argenteum in pictures
Flowering
Foliage
Plant habit
Botanical data
Alyssum
argenteum
Brassicaceae
Silver Alyssum
Alps
Planting and care
Plants of rather dry mountains, loving a calcareous, rocky soil as well as position in full sun. Suitable for rockeries, the tops of walls, paving and borders in dry soil. By cutting back the faded flowers with shears, they do not go to seed and maintain a compact and bushy appearance.
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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