Picture of 'Jackmanii' Clematis Vines

Jackman clematis (Clematis x jackmanii) is highly sought after for its large red, white, pink, purple, or lavender flowers. Hardiness zones 3-8. A trick to success with Jackman clematis vines is growing the plants in sunlight but keeping the roots cool. This may be achieved by mulching or planting low plants over the Jackman clematis vines' root zone to provide ground shade. Also be careful when pruning clematis vines. Some types flower on the previous season's wood, others on new growth. Make sure you know what type of clematis vines that you have before pruning them. The nursery where you bought your clematis vines should be able to identify them and indicate pruning dates.