Saxifraga cotyledon Southside Seedling
Saxifraga cotyledon Southside Seedling
Saxifraga cotyledon Southside Seedling
Saxifraga cotyledon Southside Seedling
Saxifraga cotyledon Southside Seedling
Saxifraga cotyledon Southside Seedling
Saxifraga cotyledon Southside Seedling
Saxifraga cotyledon Southside Seedling
Saxifraga cotyledon Southside Seedling
Saxifrage
Planted in April 2023, did not survive the summer.
Mathieu, 26/02/2025
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Description
Saxifraga cotyledon 'Southside Seedling' is a small perennial rock plant that prefers shade. It bears tall, pyramidal and trailing flower spikes adorned with tiny white star-shaped flowers with a centre marked with red to purple spots. They appear in summer, above unique, evergreen, grey-blue foliage made up of small succulent, ovate and dentate leaves arranged in rosettes. Perfectly hardy, it performs quite well in dry soil and easily establishes itself on walls or in troughs.
Saxifraga cotyledon, also known as S. pyramidalis, is a hairy and glandular perennial plant in the Saxifragaceae family. It is native to the Alps, the Pyrenees, and the mountains of Scandinavia and Iceland, spreading as far as Lapland, growing in the crevices of rocks or cliffs and in rocky scree. The variety 'Southside Seedling', from which it originates, has the same cushion-like habit, developing through the juxtaposition of succulent leaf rosettes resembling the structure and colour of artichokes or houseleeks. The plant will reach 30 to 50cm (12 to 20in) in height when flowering, 15cm (6in) for the foliage, with a minimum spread of 30cm (12in). Like most mountain saxifrages, this one has fleshy, leathery, slightly dentate leaves. It is especially remarkable for the size of its pyramid-shaped flower spike, measuring 30 to 70cm (12 to 28in) in height, bearing a multitude of small open cup-shaped flowers. Each white petal displays red markings towards the centre. The flowers bloom from May to July, depending on the climate.
This plant is superb in rock gardens or pots, and perfect for covering walls. In cool climates, it performs well in dry soil in summer, while in warmer climates, it will require more shade and moist soil. It can be planted with Campanula poscharskyana 'Stella'. Together, they will quickly fill cracks in pavements and walls, along with creeping bugles and Ceratostigma plumbaginoides. It is also perfectly suited for a wild garden. It can be admired in pots, in light and well-drained soil, and in hanging baskets where it will cascade in small, ethereal waterfalls.
Saxifraga cotyledon Southside Seedling in pictures
Flowering
Foliage
Plant habit
Botanical data
Saxifraga
cotyledon
Southside Seedling
Saxifragaceae
Saxifrage
Cultivar or hybrid
Planting and care
Saxifrage is a perfect plant for poor, dry, limestone or neutral, well-drained soil. It should be protected from excessive moisture in winter. In summer, allow the pot to dry between two waterings. You can cut the flowering stem after flowering, to avoid exhausting the plant.
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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