Clematis armandii
These are vigorous, evergreen varieties that can reach 3-4m (10-13ft), but which can be trained into an established tree, adding a whole new look to birches or maples or hawthorns. They can also be encouraged to camouflage tumbledown sheds, providing early colour. Their vigour requires a fence or wall at least 2m (6½ft) tall, west-facing is ideal, and can be dazzling on a house wall, though string wires for support before you plant. One plant will quickly cover a large area.
The large, glossy, leathery leaves of these varieties are attractive all year round and the young growth of some, such as ‘Apple Blossom’, is beautifully bronzed. Choose a named variety as some sold without a name can be less than prolific. ‘Apple Blossom’ and ‘Snowdrift’ are the earliest to flower, opening in March, sometimes even in February. ‘Apple Blossom’ has white flowers opening from pink buds contrasting with the bronzed spring leaves and each prolific flower cluster is a haze of pink and white as blooms mature. ‘Snowdrift’ has rather starry flowers in pure white.
Pruning: These flower on growth made the previous year so cut after flowering.