Encyclopaedia of vines
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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, IXVII, VIII, IX S, N, E, W 3 (hard) 4 - 9Zones 4 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 3 (hard) 4 - 9Zones 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, IXVI, VII, VIII, IX S, E, W 3 (hard) 4 - 9Zones 4 - 9
Aspect Pruning way Frost hardiness
S, E, W 3 (hard) 4 - 9Zones 4 - 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, VIIIIV, V, VII, VIII S, N, E, W 1 (none) 3 - 9Zones 3 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 1 (none) 3 - 9Zones 3 - 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, VIV, V S, N, E, W 1 (none) 3 - 9Zones 3 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 1 (none) 3 - 9Zones 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, VIIIIV, V, VII, VIII S, N, E, W 1 (none) 3 - 9Zones 3 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 1 (none) 3 - 9Zones 3 - 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, VIV, V S, N, E, W 1 (none) 3 - 9Zones 3 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 1 (none) 3 - 9Zones 3 - 9

Clematis 'Cecile'
Clematis 'Cecile'

An early-flowering variety. Lovely, semi-double, dense blue flowers, borne from April to June, followed by silky seed heads. A very hardy plant with low requirements, tolerates semi-shade. Ideal for growing over fences, stones, old stumps, shrubs and coni..

Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
violet-blue, semi-double 2-3 m small IV, VIV, V S, N, E, W 1 (none) 3 - 9Zones 3 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 1 (none) 3 - 9Zones 3 - 9

Clematis 'Markham's Pink'
Clematis 'Markham's Pink'

One of the earliest and most profusely flowering varieties. Lovely, semi-double, pink-crimson flowers, produced from April to June. During summer and autumn they are followed by decorative silky, turning into fluffy and gray with age, seed heads. A very h..

Raised by E. Markham, United Kingdom. Introduced in 1935.
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
pink, semi-double 2-3 m small IV, VIV, V S, N, E, W 1 (none) 3 - 9Zones 3 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 1 (none) 3 - 9Zones 3 - 9

Clematis 'Oberek'
Clematis 'Oberek'

The latest Polish cultivar bred by Szczepan Marczyński with pale pink open flowers of 5-6 cm across, composed of 4 rhomboid loosely arranged tepals with pink veining, light base and wavy edges. Yellow anthers on pale yellow-green filaments. It flowers pro..

Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
pink 2.5-4 m small VI, VII, VIII, IXVI, VII, VIII, IX S, N, E, W 3 (hard) 4 - 9Zones 4 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 3 (hard) 4 - 9Zones 4 - 9

Clematis 'White Swan'
Clematis 'White Swan'

An early-flowering variety. Beautiful, double, pure-white flowers with very long and twisted sepals, borne during April and May. During summer and autumn they are followed by decorative, bright, silky seed heads, becoming fluffy and gray with age. A very ..

Raised by Dr F. L. Skinner, Canada 1961.
Color of flowers Plants height Flowers size Flowering month Aspect Pruning way Frost hardiness
white, semi-double 2-3 m small IV, VIV, V S, N, E, W 1 (none) 3 - 9Zones 3 - 9
Aspect Pruning way Frost hardiness
S, N, E, W 1 (none) 3 - 9Zones 3 - 9