Cobaea scandens Climbing White Seeds
Cobaea scandens Climbing White Seeds
Cobaea scandens Climbing White Seeds
Cobaea scandens Climbing White Seeds
Cobaea scandens Climbing White Seeds
Cobaea scandens Alba
Cup and Saucer Vine
Very disappointed, only one seed seems to be taking.
jacqueline, 31/05/2025
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Description
Cobaea scandens Alba, also known as Climbing Cobaea, is a vigorous climbing plant with a slightly retro charm. This spectacular variety displays delicious white bell-shaped flowers that become cream-coloured from summer to autumn, nestled in lush and deep green foliage. It clings to its support with long, branched tendrils like those of peas. A frost-tender perennial, it is grown as an annual, in well-exposed, rich, moist but well-drained soil. It will quickly and beautifully cover any support you provide and can also be grown in a pot.
Originally from tropical and subtropical regions of the Americas, especially central Mexico, Cobaea scandens is a fast-growing herbaceous perennial vine belonging to the Polemoniaceae family, which is grown as an annual. It reaches a height of 3 m (9.8 ft) and a width of about 1 m (3.3 ft) in a single growing season. It bears dense, dark green, evergreen foliage on its slender stems. The leaves are compound, consisting of 3 pairs of 10 cm (3.9 in) long leaflets with veins. The terminal leaflet is transformed into a forked tendril that allows the plant to cling. Flowering starts in August, rarely earlier, and continues into autumn until the first frost. Bell-shaped flowers, measuring 7 to 8 cm (2.8 to 3.1 in) long, with recurved or retrorse lips, appear in the leaf axils. These flowers are initially white-greenish, then open to white before turning cream-coloured, revealing a cluster of yellow stamens. They are followed by the formation of an ovoid fruit containing seeds.
Climbing Cobaea is ideal for quickly covering a trellis, pergola, fence, or gate. But its old-fashioned charm makes it even more invaluable for covering an old stone wall or well, or cascading down a terraced garden. It excels among the September blooms, as the summer flowers decline and the soft light plays through its bell-shaped flowers. Mix the Alba variety and the classic variety on the same support as their colours harmonise beautifully. Plant blue, pink, and white asters, as well as hardy chrysanthemums, at their base to create a truly romantic tableau.
Cobaea scandens Climbing White Seeds in pictures
Flowering
Foliage
Plant habit
Botanical data
Cobaea
scandens
Alba
Polemoniaceae
Cup and Saucer Vine
South America
Planting and care
Soak the seeds of Climbing Cobaea for 2 hours in warm water before sowing. Sow in late winter or early spring at 18-24°C (64.4-75.2°F) in good potting soil. Cover the seeds with a thin layer of soil. Keep the soil moist but not waterlogged, for example by enclosing the seedling in a polyethylene bag. Germination usually takes 21 to 30 days. When the seedlings are large enough to handle, transplant them into 13 cm (5.1 in) pots, in cooler conditions, watering regularly. Then gradually acclimatise them to outdoor conditions for 10-15 days before planting them in the ground after all risk of frost is over, spacing the plants 60 cm (23.6 in) apart. Choose a sheltered, sunny, and warm location, with ordinary but well-drained soil. Plants grown in pots in a greenhouse should benefit from a humid atmosphere. If the flowers are hidden by the foliage, it is perfectly possible to prune it lightly. Avoid planting in overly rich soil, as this will promote foliage growth at the expense of flowering. The soil should remain moist but well drained. In pots, use good-quality potting soil that retains water.
Sowing period
Intended location
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).
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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.