Encyclopaedia of vines
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Clematis 'Viola'
Clematis 'Viola'

A very free-flowering variety raised in Estonia. Deep bluish-violet velvet flowers with greenish-yellow stamens are profusely borne from the end of June to August. A stunning cultivar, especially effective when grown against a light background.

Raised by U. & A. Kivistik, Estonia.Named in 1987.
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
deep bluish-violet 3 m medium VI, VII, VIII S, N, E, W 3 (hard) Zones 4 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 3 (hard) Zones 4 - 9

Clematis heracleifolia 'Cassandra'
Clematis heracleifolia 'Cassandra'

A perennial cultivar with stiff, erected stems that don’t twine round the support but can lean against it. Bright blue, hyacinth shaped, fragrant flowers, consisting of 4 rolled back tepals with nicely crimped margins, are borne in clusters in leaf axils ..

Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
blue, fragrant 1 m small VII, VIII, IX S, N, E, W 3 (hard) Zones 4 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 3 (hard) Zones 4 - 9

Clematis 'Change of Heart'PBR
Clematis 'Change of Heart'PBR

A Polish, abundantly and long-flowering cultivar of intriguing flowers that change colour while opening. Recommended for all types of gardens. WHAT IT LOOKS LIKE: Medium-sized flowers, 10–13 cm across, with 6 sepals of crimson red at the beginning, in fu..

Raised by Szczepan Marczyński, Poland 2004. Named in 2014, on the market from summer 2016.
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
pink 1.7-2 m big V, VI, VII S, E, W 3 (hard) Zones 4 - 9
Aspect Pruning way Frost hardiness
S, E, W 3 (hard) Zones 4 - 9

Clematis 'Vyvyan Pennell'
Clematis 'Vyvyan Pennell'

Described by its raisers as the best double clematis yet produced. Moderately fast growing cultivar with large, fully double, deep violet-blue flowers flushed with purple and carmine in center, borne on previous year’s wood in May-June. In August single, ..

Raised by W. Pennell, United Kingdom. Introduced in 1959.
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
double violet-blue, single in summer 2-3 m big V, VI, VIII S, W 2 (light) Zones 4 - 9
Aspect Pruning way Frost hardiness
S, W 2 (light) Zones 4 - 9

Clematis 'Justa'
Clematis 'Justa'

A Lithuanian compact cultivar. Light blue-mauve flowers, 6-8 cm across, with 6-8 elliptic tepals with a light purple bar and slightly wavy margins. Light yellow anthers on white filaments. Flowers are produced profusely and over a long period, from June t..

Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
light blue-mauve 1-1.5 m medium VI, VII, VIII, IX S, N, E, W 3 (hard) Zones 4 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 3 (hard) Zones 4 - 9

Clematis 'First Love'PBR
Clematis 'First Love'PBR

A Polish cultivar of charming, white, always semi-double flowers opening from June till August. Recommended for growing in domestic gardens and in large pots in balconies and terraces. WHAT IT LOOKS LIKE: Large flowers, 10–15 cm across, with 20–30 slight..

Raised by Szczepan Marczyński, Poland 1999. Named in 2015, on the market from summer 2016.
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
white, double 2 m medium VI, VII S, E, W 2 (light) Zones 4 - 9
Aspect Pruning way Frost hardiness
S, E, W 2 (light) Zones 4 - 9

Clematis 'Warszawska Nike' WARSAW NIKE
Clematis 'Warszawska Nike' WARSAW NIKE

A hardy, floriferous cultivar with a moderate growth rate. Polish variety. Rich royal purple flowers with gold stamens are profusely borne from June to September. Excellent for growing over fences, walls, trellises and poles. It can clamber over natural s..

Raised by Stefan Franczak, Poland. Introduced in 1982.
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
rich royal purple 2-3 m medium VI, VII, VIII, IX S, N, E, W 2 (light) Zones 4 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 2 (light) Zones 4 - 9

Clematis 'Perida'
Clematis 'Perida'

One of the prettiest red flowered cultivars. Apart from the outstanding looks its assets are modest demands and easy maintenance. Ideal for container cultivation. WHAT IT LOOKS LIKE: Medium-sized flowers, 8–12 cm across, with 6  pointed, glowing crimson ..

Raised by Willem Straver, Germany 2002.
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
glowing crimson 1-2 m medium VI, VII, VIII S, E, W 3 (hard) Zones 4 - 9
Aspect Pruning way Frost hardiness
S, E, W 3 (hard) Zones 4 - 9

Clematis 'Westerplatte'
Clematis 'Westerplatte'

An impressive cultivar with large very rich red velvety flowers and deep red anthers. Polish variety. Excellent for growing over fences, walls, arbors, pergolas, trellises and poles. It can also be grown over natural supports such as coniferous or deciduo..

Raised by Stefan Franczak, Poland.
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
very rich red 2 m big VI, VII, VIII S, N, E, W 2 (light) Zones 4 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 2 (light) Zones 4 - 9

Clematis 'Rosamunde'
Clematis 'Rosamunde'

A cultivar that commands attention due to its unusual salmon pink flowers with a deep pink bar along the middle of each sepal. It’s undemanding and may grow in every type of a garden. Recommended also for container cultivation. WHAT IT LOOKS LIKE: Medium..

Raised by Willem Straver, Germany 2000.
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
salmon pink 1 m big VI, VII, VIII N, E, W 2 (light) Zones 4 - 9
Aspect Pruning way Frost hardiness
N, E, W 2 (light) Zones 4 - 9

Clematis 'Yukiokoshi'
Clematis 'Yukiokoshi'

An intriguing, very old Japanese cultivar selected from a natural site. The calyces formed with white, fantastically twirled sepals make for an amazing spectacle from spring till late summer. WHAT IT LOOKS LIKE: Flowers large, 12–14 cm across, always dou..

Selected from a natural site in Japan in 18th century. Imported to Great Britain in 1836 by P.F. Siebold.
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
white, double 2 m big V, VI, VIII, IX S, N, E, W 2 (light) Zones 4 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 2 (light) Zones 4 - 9

The oldest of known Clematis cultivars of charming, fully double flowers, violet-purple with grey hue. It has a retro look, suitable for historical gardens. Recommended for container cultivation. WHAT IT LOOKS LIKE: Flowers small, 3–6 cm across, double, ..

Selected in 1623. Re-introduced in the market by Barry Fretwell, Great Britain 1981.
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
violet-purple with grey hue, full 2 m small VI, VII, VIII, IX S, E, W 3 (hard) Zones 4 - 9
Aspect Pruning way Frost hardiness
S, E, W 3 (hard) Zones 4 - 9

Clematis 'Happy Diana'
Clematis 'Happy Diana'

A Japanese cultivar of the largest flowers in Texensis Group. Flowers are deep pink, tulip-shaped. Bloom profusely throughout summer. WHAT IT LOOKS LIKE: Flowers small, 4–7 cm across, deep pink, consisting of 4 sepals strongly curled at the tips. They ..

Found as a sport of ‘Princes Diana’ cultivar by Tuneo Tshigura, Japan, ca. 2006.
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
pink 3-4 m medium VI, VII, VIII, IX S, E, W 3 (hard) Zones 5 - 9
Aspect Pruning way Frost hardiness
S, E, W 3 (hard) Zones 5 - 9

Clematis 'Constance'
Clematis 'Constance'

One of the earliest and most profusely flowering varieties. Charming, semi-double, crimson-pink flowers borne on long, slender stalks during April-June, and occasionally in summer. They are followed, during summer and autumn, by decorative silky seed head..

Raised by Mrs K. Goodman, United Kingdom. Introduced in 1992.
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
purple 2 m small IV, V, VII, VIII S, N, E, W 1 (none) Zones 3 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 1 (none) Zones 3 - 9

Clematis 'Kagura'
Clematis 'Kagura'

A perennial cultivar of large, ornamental, light blue flowers. Recommended for domestic garden flower beds. WHAT IT LOOKS LIKE: Flowers large, 12–15 cm across, light blue, built of 4–8 elliptically prolonged sepals with wavy margins and stamens of purple..

Raised by Hiroshi Hayakawa, Japan, ca. 1996. The name Kagura originates from traditional music pieces dedicated to Japanese gods.  
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
blue 2 m medium VI, VII, VIII S, E, W 3 (hard) Zones 4 - 9
Aspect Pruning way Frost hardiness
S, E, W 3 (hard) Zones 4 - 9

Clematis 'Frances Rivis'
Clematis 'Frances Rivis'

A beautiful, early and profusely flowering variety. Violet-blue flowers with a contrasting sheaf of white stamens and staminodes in the center, followed, during summer and autumn, by decorative silky seed heads. A very hardy plant with low requirements. I..

Raised by Sir Cedric Morris, United Kingdom
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
violet-blue 2-3 m small IV, V S, N, E, W 1 (none) Zones 3 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 1 (none) Zones 3 - 9

Clematis 'Pamela Jackman'
Clematis 'Pamela Jackman'

One of the earliest and most profusely flowering varieties – during April-June, with occasional flowers in summer. Charming, large, rich blue flowers with outer staminodes tinged blue and inner staminodes white are followed during summer and autumn by dec..

Raised by G. R. Jackman, United Kingdom 1939.
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
blue 2.5 m small IV, V, VII, VIII S, N, E, W 1 (none) Zones 3 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 1 (none) Zones 3 - 9

Clematis 'Rooran'
Clematis 'Rooran'

A Japanese cultivar with bright pink flowers, 15-18 cm across. 6-8 elliptic, long-tipped tepals are paler at the base and have dark pink veining. Brown-purple anthers on creamy filaments. It flowers in the second half of May and June and again in August a..

Bred by Masako Takeuchi, Japan 1995
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
pink 2-3 m big V, VI, VIII, IX S, N, E, W 2 (light) Zones 4 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 2 (light) Zones 4 - 9

Clematis 'Willy'
Clematis 'Willy'

One of the earliest and most profusely flowering varieties. Charming, mauve pink flowers with a deep pink blotch at the base of each sepal and paler margins, borne during April-May, are followed during summer and autumn by decorative, silky seed heads. A ..

Raised by R. Zwijnenburg, Netherlands 1971.
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
deep pink with paler margins 2-3 m small IV, V S, N, E, W 1 (none) Zones 3 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 1 (none) Zones 3 - 9

Clematis 'Serafina'
Clematis 'Serafina'

A Polish cultivar with large, 20-22 cm across, pale violet-pink flowers consisting of 6-8 narrow elliptic tepals, long-tipped, with a pale, almost white central bar. Purple anthers on creamy filaments. It flowers very freely in the second half of May and ..

Bred by Stefan Franczak, Poland
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
pale violet-pink with a lighter bar 2.5-3 m very big V, VI, VIII, IX S, N, E, W 2 (light) Zones 4 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 2 (light) Zones 4 - 9