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Clematis Vostok

Clematis Vostock

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Paris I have just re-planted this clematis (22nd March), hoping that it will grow well and spread out over time to fill my space with its anticipated flowers ;-) THANK YOU to Promesse de Fleurs for the smooth delivery (the root ball was still moist upon arrival)! I am very happy with my purchase.

Véronique, 22/03/2023

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Value-for-money
This variety is a climbing clematis prized for its exceptional summer flowering and robustness. From July to September, it produces medium-sized star-shaped flowers with 6 distinct and bulging sepals in a fairly light purple or mauve-purple colour. They are marked by dark pink medians and punctuated by a dense bouquet of bright yellow stamens with pink anthers. Its undulated margins and deep veins contribute to its wild yet distinguished appearance. This deciduous hardy climber is easy to cultivate and its compact dimensions are ideal for container gardening. It simply requires a slightly sunny location and moist, well-drained, and fertile soil.
Flower size
15 cm
Height at maturity
2.50 m
Spread at maturity
2 m
Exposure
Sun, Partial shade
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil
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Best planting time March, September
Recommended planting time February to April, September to October
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Flowering time July to September
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Description

Clematis 'Vostok' is a climbing clematis prized for its exceptional summer flowering and robustness. From July to September, it produces medium-sized star-shaped flowers with 6 distinct, rounded sepals in a fairly light purple or mauve-purple colour. They are marked with dark pink midribs and punctuated with a dense cluster of bright yellow stamens with pink anthers. Its highly undulate margins and deep veins contribute to its wild yet distinguished appearance. This deciduous hardy climber is easy to grow, and its compact size makes it suitable for container cultivation. It simply requires a partially sunny location and moist, well-drained, and fertile soil.

 

The cultivar 'Vostok' is a hybrid clematis of Ukrainian origin from 1963, only marketed for about a dozen years. Its name means "East". Clematis is a deciduous climber belonging to the Ranunculaceae family. Like most of its cousins, it prefers light, deep, moist, and fertile soil that is preferably neutral. It enjoys a sunny or partially shaded position, with its base always in shade. It resists cold temperatures and is not afraid of frost, even if prolonged. However, it does not tolerate stagnant humidity, so the substrate must be well-drained and watering should be moderate (if necessary, during the first year). It can be grown in a container if the pot is large enough (minimum 60cm (24in) in diameter.

'Vostok' can reach a height of 2.5m (8ft) and a width of 2m (7ft). It is a Group 2 clematis, which means it has large flowers and blooms in spring, with a second flowering in late summer. The lignified stems from the previous year bear the spring flowers, which are sometimes double. The herbaceous branches from the current year bear the late summer flowering. The second wave of flowers are single stars. They are normally composed of 6 tepals with a diameter of 10 to 15cm (4 to 6in). They have a large centre filled with bristly stamens. Afterwards, they transform into dry fruits with persistent feathery aigrettes in winter. The deciduous and medium green leaves are composed of 3 to 5 leaflets. They are carried by voluble petioles called tendrils that wrap themselves around their support.

Plant spring bulbs and ground-cover perennials, such as blue or white geraniums, at its base and enjoy the show with minimal maintenance. If you have a larger space, this vigorous clematis can weave through bushes or up a column, adding verticality to a colourful flower bed. Large-flowered repeat-blooming clematis are the best companions for roses. 'Vostok' will perfectly complement compositions in blue, purple, and pink. It will bring brightness to shaded areas. Pair it with variegated evergreen shrubs or climbers with pink and white flowers like some ivies or weigela.

Clematis Vostok in pictures

Clematis Vostok (Flowering) Flowering
Clematis Vostok (Plant habit) Plant habit

Plant habit

Height at maturity 2.50 m
Spread at maturity 2 m
Growth rate fast

Flowering

Flower colour violet
Flowering time July to September
Inflorescence Solitary
Flower size 15 cm
Bee-friendly Attracts pollinators
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Botanical data

Genus

Clematis

Cultivar

Vostock

Family

Ranunculaceae

Other common names

Origin

Cultivar or hybrid

Product reference878821

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Planting and care

Plant in spring or autumn. It prefers moderately moist but not waterlogged soil that is deep, well-cultivated, drained, and rich. Plant at a depth of 5cm (2in), with the root ball placed diagonally or even lying on the ground. The head should be in the sun (or partial shade) and the base in the shade. You can place a flat tile in front of the stump or use ground cover plants to provide the necessary shade. Cover the base with a small mound of soil to encourage new shoots. After planting, cut the stems back to 30cm (12in) from the base, above a pair of buds.

Train them loosely to help the plant cling on its own.

Maintenance pruning should be done after flowering (in midsummer) to remove faded flowers and shorten the stems that have bloomed. This will help the plant to produce new shoots for a second flowering. More vigorous pruning can be done in spring to cut back certain stems more severely, but not necessarily every year.

Keep an eye out for pests such as aphids, slugs, and snails.

 

Planting period

Best planting time March, September
Recommended planting time February to April, September to October
Type of support Arch, Pergola, Tree, Trellis, Wall

Intended location

Suitable for Meadow, Woodland edge
Type of use Border, Container, Hedge, Climbing
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Beginner
Planting density 1 per m2
Exposure Sun, Partial shade
Soil pH Any
Soil moisture Moist soil, Fertile and well-drained.

Care

Pruning instructions Prune in summer to remove faded blooms and shorten the flowering stems to encourage repeat flowering. Prune more severely in early spring by cutting back some stems to encourage new shoots. Trim damaged and weak stems, and prune the others just above the most vigorous buds.
Pruning No pruning necessary
Soil moisture Moist soil
Disease resistance Good
Overwinter Can be left in the ground
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