Clematis can be deciduous or evergreen shrubs or herbaceous perennials, mostly climbing by twining leaf-stalks, and often with showy flowers. Some have attractive fluffy seed-heads in autumn
Integrifolia Group clematis are woody-based subshrubs with non-climbing or semi-climbing herbaceous stems, and bell-shaped or flat flowers on the current year's growth, in summer and early autumn
'Arabella' is a semi-herbaceous compact perennial with scrambling stems bearing deep blue-mauve flowers 7.5-9cm across, with six narrow sepals becoming pinky-mauve. Flowers from late spring to early autumn.