Clematis Viticella Group

Origin: cultivars are mainly derived from Clematis viticella or a Viticella Group cultivar for at least one parent.
Habit: Either semi-upright to climbing, deciduous.
Leaf: Ternate or pinnate, herbaceous, petioled. Leaflets simple but usually ternate or pinnate, margin entire or lobed.
Inflorescence: An axillary and terminal cyme on young shoots, usually starting at the base upwards sometimes followed with a terminal flower.
Bracts: Present, leaflike but less divided to simple.
Flower: Bisexual, campanulate to open campanulate or sometimes almost spreading, usually nodding to upright, 3-12 cm across, bud nodding.
Tepals: 4-6, white, red-purple, violet or blue, when the temperatures are low during the development of the buds in early spring some green in the tepals might be formed in the first flowers.
Stamens: Usually fertile but in a few cultivars changed into tepal-like staminodes, filaments glabrous but sometimes with a few hairs near the anthers.
Pistil: Few cultivars have no fertile pistil but tepal-like pistillodes usually together with tepal-like staminodes.
Flowering time: Late spring into summer and early autumn.
Seed tail: Not plumose, seedhead not persistant.
Zone: 4-11 (EU & USDA zones).
Hard pruning.
Planting depth: About 5 cm deeper as in the pot, so slightly deeper.
Roots: Fleshy.
Leaves in seedlings: Opposite.



ref: Wim Snoeijer (2008) Clematis Cultivar Group Classification with Identifying Key and Diagrams.

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