'C. heracleifolia 'Mrs. Robert Brydon'' clematis Description
Photo courtesy of TLMKozak
Group 3, Herbaceous Group, Late, Small-flowered.
Light blue. 4 to 5 petals. Average diameter 1.25". Single, curved edge bloom form. Midsummer to early autumn.
Height of 6' to 8' (185 to 245 cm).
USDA zone 4b through 9b. In early spring, cut back to just above the lowest set of healthy buds.