The masses of lightly scented, deep bluish-purple flowers ofClematis hendersonii have slightly twisted out sepals surrounding yellow anthers. A herbaceous scrambling variety or a short climber.

Midsummer-early autumn flowering. Best in a sunny position in a moist, but well drained soil. Height & spread: 150cm-250cm x 90cm-150cm (5′-8′ x 3′-5′).