Arabis alpina subsp. caucasica Snowball
Arabis alpina subsp. caucasica Snowball
Arabis alpina subsp. caucasica Snowball
Arabis alpina subsp. caucasica Snowball
Arabis caucasica Snowball
Mountain Rock Cress, Alpine Rock Cress, Alpine Rockcress, Caucasus Rockcress, Wall Rock Cress
Very pretty in bloom at the beginning of summer. But they did not withstand full sun with little water.
Anne, 15/08/2024
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Description
The Arabis caucasica 'Snowball' is a variety of rock cress that is remarkably compact and floriferous, with its vegetation disappearing in spring under a multitude of pure white flowers, forming a snowball-like shape in flower beds. This perennial ground cover is highly effective in preventing the growth of weeds. It is also decorative with its tiny olive-green foliage that remains even in winter. It is ideal for covering walls, climbing slopes, covering the base of hedges, dressing potted plants, or bordering gravel paths.
The Arabis alpina subsp. caucasica 'Snowball' belongs to the Brassicaceae family. Its wild ancestor is a very hardy plant native to temperate regions of the northern hemisphere. "Snowball," sometimes found under Arabis caucasica 'Schneeball', was recently selected in Germany for its dense, low habit and excellent floribundity. This creeping perennial forms a cushion that spreads through rhizomes. Its growth is relatively slow. It forms a dense ground cover, reaching 15-20 cm (6-8in) in height, with a minimum spread of 35 cm (14in), theoretically unlimited. The flowering period is from April to June, depending on the climate. Its countless small, slightly fragrant flowers are grouped in generous clusters. They bloom above the olive-green foliage. The leaves form compact rosettes, are oval and jagged, and measure 2 cm (1in) in length.
Perfect rockery plants, these robust rock cress make excellent ground covers along borders, on a patio, for walls or on slopes. Arabis caucasica 'Snowball' is a lovely ground cover plant that can quickly spread and prevent the growth of weeds. Planting it in a rock garden with delicate plants is not recommended. However, it is perfect for covering the base of shrubs or hedges, even in partially shaded areas, and is as easy to maintain as ivy. Its appearance resembles drapery on stones and walls, making it a beautiful addition to any garden. The rock cress has excellent longevity and is easy to grow. It will flower each year at the same time as tulips and other spring bulbs
Arabis alpina subsp. caucasica Snowball in pictures
Flowering
Foliage
Plant habit
Botanical data
Arabis
caucasica
Snowball
Brassicaceae
Mountain Rock Cress, Alpine Rock Cress, Alpine Rockcress, Caucasus Rockcress, Wall Rock Cress
Schneeball'
Cultivar or hybrid
Planting and care
Rockcress thrives in well-drained soil, whether rocky or gravelly, acidic, neutral, or slightly chalky. You can plant them from spring to autumn, but water them regularly to help them grow. To prevent any problems, ensure neighbouring plants and weeds don't crowd them during planting. Although they are very robust, they grow slowly. After they flower, use shears to prune them to encourage denser growth.
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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