Clematis Jackmanii Superba
Clematis Jackmanii Superba
Clematis Jackmanii Superba
Clematis Jackmanii Superba
Clematis Jackmanii Superba
Clematis Jackmanii Superba
Clematis Jackmanii Superba
Clematis jackmanii Superba
So far, so good. I'm eagerly looking forward to what comes next.
Brigitte , 01/05/2025
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Description
Clematis 'Jackmanii Superba', also known as C. 'Gipsy Queen', is a beautiful improvement of Jackman's clematis, a very old variety widely planted in gardens due to its astonishing ability to flower and grow almost anywhere. This variety produces even more flowers. They are slightly larger, with more rounded petals. They boast the same purple-violet colour, centred on a small bouquet of white-cream stamens. They bloom all summer on a climbing plant with a bushy, dense, and compact habit. It is adorned with deciduous foliage, ranging from medium green to dark green. This excellent variety is fully hardy and thrives in all our regions.
Clematis belong to the Ranunculaceae family. They are found in Europe, the Himalayas, China, Australia, and North and Central America. Clematis 'Jackmanii Superba', resulting from hybridisation, is a perfectly perennial, semi-woody, climbing herbaceous plant that will reach a height of 3m (10ft), with a minimum spread of 1m (3ft). It bears large star-shaped flowers, reaching a diameter of 14 to 18cm (6 to 7in). They bloom in successive waves on the current year's shoots, from June until the end of summer. The flowers are larger during the first flowering, and are either solitary or grouped in cymes. They have 4 to 6 purple-violet overlapping petals. The centre of the flower is adorned with a beautiful crown of cream stamens. Decorative silvery-grey feathery fruits follow the flowers, persisting on the plant until winter. The glabrous leaves are divided into 3 leaflets, ranging from bright green to dark green. This clematis clings to the support or host plant through petioles transformed into tendrils.
Plant your clematis alongside climbing roses, such as 'New Dawn', 'Mme Caroline Testout', 'Zéphirine Drouhin', to extend the flowering period of walls and pergolas until the end of summer. It is a genus rich in diversity, with flowers of all colours, shapes, and sizes. Take advantage of their easy cultivation to give your garden a romantic and bohemian touch.
Avoid excessive use of fertiliser that stimulates foliage at the expense of flowers. Do not mulch in order to avoid excessive moisture.
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Clematis Jackmanii Superba in pictures
Plant habit
Flowering
Foliage
Botanical data
Clematis
jackmanii
Superba
Ranunculaceae
Cultivar or hybrid
Planting and care
Clematis 'Jackmanii Superba' will appreciate a sunny or lightly shaded position. Plant it in fertile, humus-rich, well-drained soil, shading the roots and base of the stem (with a flat tile, for example). Clematis wilts in overly moist soil. Plant it in well-worked soil, lightened with good compost and coarse sand. Position the root ball at an angle and cover with 3cm (1in) of soil. After planting, prune the clematis stems back to about 30cm (12in) from the base above a pair of buds. Water regularly during the first few weeks. However, do not let water stagnate as this can cause fungus to develop at the collar.
Mulch all clematis in February with garden compost or well-rotted manure, avoiding direct contact with the stems.
Train the stems, without squeezing them, until the plant can cling on its own. Clematis also like to grow freely on neighbouring plants.
After a few years, cover the base of your climbing clematis with a small mound of soil, to reduce the risk of wilting, while promoting the emergence of vigorous shoots from the stump.
Voles and grey worms can attack clematis and devour the stems. Aphids and greenhouse whiteflies are also potential pests.
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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