Clematis 'Jackmanii'

Clematis 'Jackmanii' is a deciduous climbing cultivar raised by George Jackman & Son, a nursery based in Woking, Surrey, England. It was officially introduced to the public in the 1860s and quickly became a massive commercial success. The nursery crossbred different species to create the hybrid.

The vine produces abundant, large deep violet-purple flowers that create a striking visual display from mid-summer to early fall. When it blooms, the dark purple petals contrast beautifully against the plant's bright green foliage. The flowers usually feature four to six broad, overlapping sepals.

It was created as a hybrid of Clematis lanuginosa and is considered the first large-flowered clematis hybrid widely available to the public. Its massive success in the 1860s sparked a Victorian gardening craze for large-flowered clematis breeding. It remains one of the most popular garden vines in the world.

Clematis 'Jackmanii' belongs to Pruning Group 3, meaning it blooms exclusively on new wood. Gardeners should cut the entire plant back to about a foot from the ground in late winter or early spring before new growth begins. This ensures the plant produces vigorous new vines and flowers.