Clematis durandii has deep blue flowers of 4 petals with creamy, showy anthers, on a non-clinging, scrambling vine. Blooms July and August. Unusual and very striking.
Group B: Species and Cultivars which tend to be more vigorous growers. They preform best with a yearly hard pruning in late winter or early spring. Always remove dead stems, and cut the Group B plants back to 1' to 2'.