When is the best time to replace a broken clematis trellis?
The amount of pruning you'll need to do depends on how entwined your clematis and trellis have become. Ideally, you can untangle the clematis while it's dormant, then replace the trellis and tie the vine onto the new support. But untangling a twining vine can be frustrating and time-consuming. If it's too much of a headache, prune your plant as severely as necessary to remove it from the support. Do so while the plant is dormant. Severe pruning may remove next year's flowers if the clematis is a spring bloomer. But it should send out new shoots from the base that will bloom nicely the following year. If the trellis has broken during the growing season, consider propping up the trellis with supplemental stakes or supports to get through the year until the proper pruning time.
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