Pruning clematis correctly will serve this vine appear its secure year after year .

Often grow with little care in the correct spot , clematis vineswill bloom best when clip aright at least once a yr . Knowing how and when to prune clematis can do a plenty to keep your vine coloured and salubrious , yr after year . This scout coverspruning the three independent groups of clematis , based on the clip of year they bloom .

Clematis Groups

A long - time darling in American gardens , clematis are recurrent , mostly vining plants that are categorized into three groups . Each group develop and blooms somewhat differently , so it ’s best to know where your clematis jibe before you set out trimming your plant .

If you are timid which group your clematis fall in , go by when it blooms to cipher out the good time to prune .

Matthew Benson

Clematis blossoms with shears

Credit:Matthew Benson

Group 1

you could have a bun in the oven to do very little pruning in this first group apart from removing break , utter , or out - of - place vine . Clematis in this first mathematical group raise blossom on honest-to-goodness vines , so pruning should only be done after their second year , if at all .

Bloom Time : Spring .

When to Prune : presently after blossom .

yellow coneflowers with clematis blooms

Credit: Bob Stefko

How to Prune : Focus on just remold , cleaning , anddeadheading the vine , which set aside the plant to continue growing and recrudesce peak buds for the next time of year .

Group 2

Pruning Group 2 clematis is a lilliputian more involved than Group 1 because of the repetition blooming , but it sustain works depend their best . This group of clematis produces flowers on the previous year ’s growth and a second peak of flowers on the current year ’s increase . They flower twice in a single year under idealistic conditions .

Bloom Time : May and June , and again in late summer .

When to Prune : Late wintertime or early fountain as bud begin to swell , and again after first localise of blooms has faded .

How to Prune : Remove any broken , unruly , or drained vines from the works . Then veer back a third of last year ’s ontogeny to about 12 column inch from the soil . Leave at least one strongly farm bud on each vine . Group 2 clematis can also benefit from a second round of pruning after the first set of blush has wind up . Deadhead seed pod to direct the plant life ’s vitality into a 2nd undulation of flower later in the time of year .

Group 2 clematis are comparatively forgiving , being able to bloom on both new and honest-to-goodness stem , so a heavily pruned flora still typically grows well and continues to bloom the following year without issues .

Group 3

Group 3 clematis are exceptionally leisurely to prune . Clematis of all kindsgrow at a surprisingly fast pace , and Group 3 flora bounce back quickly . A pop illustration isClematis jackmanii(shown here ) , which has tumid purple flowers .

Bloom Time : Mid - summer through early fall .

When to Prune : In late spring , just as the buds commence to intumesce .

How to Prune : curve back these plants entirely each class to take into account for a immense amount of new increase that ’ll bring new efflorescence .   Prune all the vines down to about a foot above grime level .

Clematis Care Tips

As with all plant , when dwell leaves , branches , and stems are removed from the industrial plant , they miss food . To forestall this loss of nutrients and boost your clematis in spring as maturation resume , apply alow - nitrogen fertilizerfollowed by a balanced fertilizer every four weeks throughout the grow season . Clematis are backbreaking feeders and revalue the extra supply of nutrients that allows them to bloom to the best of their ability .

Each springtime , mulch around the base of the clematis . Mulch helps obtain moisture in the grime and keeps the ground nerveless . Apply a 3- or 4 - in bed of composted barque chips , sliced bark , or anotherorganic mulch , and remove any weeds that might vie with the clematis root .