Clematis 'Mrs. Cholmondeley' is a long-flowering, large-flowered clematis with elegant lavender-blue blooms that appear from late spring to early autumn. Its soft, silvery hues and classic shape make it a standout choice for brightening fences, pergolas, or trellises. A reliable and easy-to-grow climber, it belongs to Pruning Group 2, requiring only a light tidy-up in late winter or early spring.