Clematis ‘Jackmanii’ or Jackman’s Clematis is from the Ranunculaceae family of plants. It is a deciduous climber. If flowers in summer and autumn with start shaped purple flowers that appear on new growth. You should plant it in full sun or partial shade in a moist but well-drained, rich fertile soil. It can grow up to 4 meters 12ft. Clematis usually likes to keep its root cold sometimes keeping the area shaded by other plants or rocks helps. You can propagate Clematis ‘Jackmanii’ by layering or cuttings (semi-hard cuttings).
Clematis ‘Jackmanii’ is easy growing and rewards you with a profusion of flowers. You can grow them over walls or fences or on a trellis. Prune this clematis later winter or in spring and you can hard prune since it flowers on new growths. Clematis ‘Jackmanii’ has a mild scent almost unnoticeable. Watch out for aphids especially when it is growing, it could also suffer from Clematis Wilt. The name Jackmanii comes from George Jackman who bred this variety from Clematis vitticella and Clematis lanuginosa, one is native to Europe and second to Asia. George Jackman is an English horticulturalists and probably Clematis ‘Jackmanii’ is one of his most popular hybrids. He lived 1837-887 he developed Jackmanii in 1958. Some of his other hybrids include Countess of Lovelace, Mrs. George Jackman, Duchess of Edinburgh, Sir Trevor Lawrence, and Duchess of Albany.