Prune hard in winter to strong buds close to the ground. This group includes the late large flowered hybrids, the viticella group and perennial varieties. Remove any dead or damaged stems, and prune to fit the space you have. See Method Three for how to prune in this way. If you don’t know which pruning category your clematis falls into, watch the plant for a … Pruning Group 3 This group comprises clematis that flower from mid- to late summer on the terminal 60cm (2ft) or so of the current year’s growth. As the popularity of Clematis increases, gardeners want more information, so they can be successful with this 'Queen of the Vines'. Group 3: This group produces flowers on growth from the current season in late summer and fall. Tie in the stems to their supports and mulch. Group 3 clematis are the easiest to prune, because although you cut away more of the plant, there is little decision-making necessary. Pruning Group 3 (Clematis) Pruning Group 3. Read our Grow Guide to Group One clematis. Most species are known as clematis in English, while some are also known as … Pruning Group 3 (PG3): Clematis which flower on the current year's new growth after early summer. Group 1, spring bloomers: Clematis that bloom in early to mid-spring (April-May) flower on last year's wood. Popular varieties include hybrids, such as Jackman's clematis and 'Ernest Markham.' Group three clematis flower only on new growth. The reason for doing this would be to delay heavy blooming until the later summer (in case you are going to be gone for the early summer and want to see your clematis bloom). They are mainly of Chinese and Japanese origin. Consider pruning this type of clematis as you would a late summer clematis. Clematis is a genus of about 300 species within the buttercup family, Ranunculaceae.Their garden hybrids have been popular among gardeners, beginning with Clematis × jackmanii, a garden standby since 1862; more hybrid cultivars are being produced constantly. Just be sure you leave two sets of healthy buds on each stem, about 12 to 30 inches above the ground. Pruning Type 3 Clematis Flowers. While nothing could be easier than simply tidying up the type 1 and 2 clematis, pruning type 3 clematis is considered by many to be the easiest. If this type is left unpruned growth will continue from where it ended the previous season, resulting in a tangled mass of growth, flowering often well above eye level and stems bare at the base. A Group One clematis needs little or no pruning – just give it a tidy after flowering. Type 3 clematis produce flowers in late spring and summer on the current year’s growth. Do annual pruning in late winter or early spring, cutting back all the old stems to the lowest pair of live buds. Many varieties in this group …