Clematis ‘Early Sensation’ . It is prolific in flower and has attractive evergreen foliage which is non-clinging. Grows 5-7', Sun, Hardy Zone 7. This unusual, evergreen clematis can be grown against a sunny, south-facing, sheltered wall. 'Early Sensation' is an evergreen clematis which grows up to 3m (12ft) tall, with green, divided leaves that emerge with striking bronze tints for an early display of extra … Supplied in a 2-3 Litre pot at height: 60-90cm approx. Clematis x cartmanii 'Early Sensation' A compact evergreen climber with parsley-green leaves and small white bowl-shaped flowers in early spring. Also makes a lovely conservatory plant. Clematis ‘Early Sensation’ Common Name: clematis 'Early Sensation' Type: Climber Habit: Climbing Foliage: Semi-evergreen Height: 2.5-4 metres Spread: 2.5-4 metres Flower colour: White Flowering from: April to May Foliage colour: Green Hardiness: H4 Small, white, bowl-shaped, early spring flowers with contrasting greenish-cream centres and parsley-green leaves. Clematis cartmanii and its cultivars originate from species native to New Zealand. Clematis 'Early Sensation' Small, bell-shaped, scented white flowers with a trace of lemon-yellow. This group of clematis is dioecious (producing either male or female flowers).It is an early season clematis (Pruning Group 1) that flowers early in the year on shoots produced in the previous summer. Greenish-yellow or cream filaments with yellow or sometimes purplish anthers.