The most popular of all the non-vining clematis, award-winning Clematis 'Arabella' is a semi-herbaceous compact perennial with small, open-faced, deep blue-mauve flowers, 3.5 in. across (9 cm). The buttercup blossoms bear 6 strongly ribbed sepals, gradually curling along the edges and a prominent central tuft of stamens with yellow anthers. They open purple-blue with a reddish cast, then fade towards blue. Blooming profusely from late spring to early fall, this small-flowered clematis is not a vine.
Winner of the prestigious Award of Garden Merit of the Royal Horticultural Society for its noteworthy qualities.