clematis

For Clematis 'Jackmanii', water thoroughly and deeply at least once a week, preferably twice. The plant should receive 1 to 2 inches of water each time. In hot weather, water it more often to prevent the plant from drying out. Water early in the day so that the plant has time to dry out before nightfall. Avoid wetting the leaves to prevent disease.

Clematis 'Jackmanii' prefers full sun for most of the day in order to thrive. If grown in partial shade, it will likely produce fewer flowers and lose its lush foliage and vigor. But, in very hot climates, some afternoon shade is beneficial to prevent sunburn and wilting. The best light exposure for this species of clematis is 4 to 6 hours of direct sunlight during morning and early afternoon and then 5 to 7 hours of indirect light in late afternoon and early evening.

Hardiness zone 4–8.

For the Clematis 'Jackmanii' plant species, it is recommended to prune at least twice a year, once in late winter and once in late summer. For late winter pruning, it is best to wait until late February or early March, after the plant has gone dormant and the risk of frost has passed. At this stage, remove any dead or damaged stems from the previous season. The rest of the stems should be cut back to the third pair of healthy buds from the base of the stem. For late summer pruning, it is best to wait until late August or early September when the flowering display has begun to fade. Cut back the stems of the Clematis 'Jackmanii' to about 20-30 cm above ground depending on how much the plant has grown since winter pruning. This will produce a renewed flowering display that will last until the end of October. In summary, the Clematis 'Jackmanii' should be pruned twice a year in late winter (late February/early March) and late summer (August/September).

Layering Propagation, Cutting, Division, Grafting Propagation