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Value-for-money

Clematis Jackmanii Superba

Clematis jackmanii Superba

4,7/5
33 reviews
4 reviews
1 reviews
1 reviews
1 reviews

Planted in the autumn, it's producing beautiful shoots this March. Its recovery and vitality are undeniable. Now, I'm just waiting for the flowers...

Cécile, 25/03/2024

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This plant carries a 6 months recovery warranty

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Value-for-money
This generous variety produces an abundance of large, round flowers in a purplish-violet colour with a small cluster of white-cream stamens in the centre. This climbing plant has a bushy habit that is dense and compact. It is adorned with deciduous foliage, ranging from medium green to dark green. It is fully hardy and can be grown in all our regions.  
Flower size
16 cm
Height at maturity
3 m
Spread at maturity
1 m
Exposure
Sun, Partial shade
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil
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Best planting time March, October
Recommended planting time March to May, September to October
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Flowering time June to September
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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.

 

Clematis Jackmanii Superba in pictures

Clematis Jackmanii Superba (Flowering) Flowering
Clematis Jackmanii Superba (Foliage) Foliage

Plant habit

Height at maturity 3 m
Spread at maturity 1 m
Growth rate fast

Flowering

Flower colour violet
Flowering time June to September
Inflorescence Cyme
Flower size 16 cm
Fruit colour grey

Foliage

Foliage persistence Deciduous
Foliage colour green

Botanical data

Genus

Clematis

Species

jackmanii

Cultivar

Superba

Family

Ranunculaceae

Other common names

Origin

Cultivar or hybrid

Product reference823951

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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

Best planting time March, October
Recommended planting time March to May, September to October
Type of support Arbour, Pergola, Trellis, Wall

Intended location

Suitable for Meadow, Woodland edge
Type of use Border, Climbing
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Amateur
Planting density 1 per m2
Exposure Sun, Partial shade
Soil pH Any
Soil moisture Moist soil, Fertile, deep and well-drained

Care

Pruning instructions It blooms on the current year's branches. At the end of winter (usually in March), prune back to 20cm (8in) from the ground, or from a thick stem on an older subject. Cut above a pair of buds.
Pruning Pruning recommended once a year
Pruning time March
Soil moisture Moist soil
Disease resistance Good
Overwinter Can be left in the ground
4,7/5

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