Clematis diversifolia

Clematis Diversifolia group: Woody-herbaceous, flowering on new shoots in summer and early autumn.  Simple to pinnate foliage. Drooping to upright, bell-shaped to open flowers between 4 and 12 cm across. 4-6 tepals from purple-red to violet-blue. Herbaceous clematis make excellent rose companions.
Origin: The varieties descend directly or indirectly from Clematis integrifolia X Clematis viticella.
Use: As a climber over small shrubs or in the herbaceous border. Most varieties make good cut flowers.
Pruning: Hard pruning to 20 cm in late winter.
Resistance: Most varieties are slightly susceptible to powdery mildew.
Hardiness zone: 5, very hardy in Germany.
Planting depth: 5 cm deeper than in the pot.