Most are deciduous but our nine native clematis species are all evergreen. Clematis are variable in habit and vigour, from the noxious weed, old man’s beard, Clematis vitalba to the ornamental large-flowered cultivars, down to a small growing rock garden plant.
The more exotic and best varieties thrive in the weather conditions we experience here in Dunedin. For the best results their roots should have a cool moist position and support such as a trellis or tree to allow it to climb so the foliage is exposed to full sunlight where the flowers will bloom to their full advantage. It is good idea to plant some small shrubs or perennials around the base of the clematis vine to provide shade for the roots.
It is a versatile climber for any situation such as hiding a drab wall or fence or adding interest to a rock garden. Cultivars such as ‘Nelly Moser’, ‘Jackmanii’, ‘Ville de Lyon’ and ‘Henryi’ will give your garden a distinctive wow factor with their beautiful large colourful flowers.
Pruning will prolong the life and stimulate fresh growth. The general rule is to cut back after flowering. Most Clematis will stand quite heavy pruning, especially C. montana and its hybrids.
The most beautiful and best known of our natives is Clematis paniculata. In the spring months it can be seen giving a large splash of white cascading over the tree-tops of our native bush areas.
Garden Life is produced by Dunedin Botanic Garden. For further information Contact David Askin.
