Clematis Vitalba Group

Origin: Cultivars are mainly derived from species belonging to the botanical subgenus Clematis, for at least one parent, from species like Clematis potaninii, Clematis vitalba and Clematis virginiana.
Habit: Climbing, deciduous.
Leaf: Ternate or pinnate, rather herbaceous, petioled. Leaflets simple, ternate or pinnate, margin entire or serrate.
Inflorescence: A solitary flower or a several to many-flowered dichasial cyme axillary on young shoots from the base upwards, sometimes followed by a terminal flower. Within the inflorescence terminal flower first.
Bracts: Present, leaflike but less divided to simple.
Flower: Unisexual or bisexual, upright, spreading, 1-5 cm across, some cultivars are fragrant, bud upright.
Tepals: 4 or sometimes 5 or 6, white.
Stamens: Glabrous.
Flowering time: Summer into early autumn.
Seed tail: Plumose, seedhead not or rather persistant.
Zone: 4-9 (EU & USDA zones).
Hard pruning.
Planting depth: Same level as in the pot, do not plant deeply.
Roots: Fibrous.
Leaves in seedlings: Alternate.



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

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