Pruning Group 2 - prune after flowering as needed.
These Clematis begin flowering in late spring and early summer (mid-May - early June) on the previous year's growth. They often repeat blooming in summer on new wood. Flowers range from 15 to 25 cm in diameter and stems grow up to 2-3 m. Unfortunately the cultivars from this group can be susceptible to Clematis Wilt.
C. 'Asao' - single or semi-double deep pink flowers with a paler central bar and yellow anthers. C. 'Fujimusume' - intense blue flowers with yellow stamens. C. 'Guernsey Cream' - flowers that are yellow on opening become creamy-white in full blossom. Very early flowering. It doesn't like hot and sunny positions. C. 'Mrs Cholmondeley' - large single or semi-double gappy lavender blue flowers with darker veining and brown anthers. Sometimes the flowers can be very large (12-23 cm). C. 'Mrs George Jackman' - white flowers with coffee stamens are semi-double on old wood and single on new growth. C. 'Niobe' - compact cultivar with deep-red velvety flowers and yellow stamens. C. 'Piilu' - compact cultivar with pink flowers that are semi-double on previous year's wood and single on new growth. Yellow stamens. C. 'The President' - compact cultivar with navy blue flowers. C. 'Warszawska Nike' ['Warsaw Nike'] - deep red-violet velvety flowers with golden stamens. C. 'Westerplatte' - compact cultivar with brightly red velvety flowers.