Clematis 'Princess Diana' is a deciduousclimbing plant with a herbaceous habit. Stems will climb by twining their leaf petioletendrils around surrounding objects. This cultivar can reach heights ranging from 250 – 400 cm tall when a suitable area to climb is available. Leaves are green and pinnately trifoliate. Plants will flower from early summer to autumn. Flowers are 6 cm long, tulip shaped and reddish-pink in colour. The flowers possess recurved petals and blooms contain cream and maroon stamens.
Pests and diseases
Clematis 'Princess Diana' can be attacked by various species of aphid. Earwigs such as Forficula auricularia will also feed on the petals of the flowers. Caterpillars of the angle shadesmoth '' and lesser yellow underwing moth also feed on the leaves of the plant.