Weigela Red blooming in Spring
Prune to Promote Flowering.
In the summer, prune all of the weigela tips with flowers back by about 2/5 of their length. This will promote new growth and more flower buds for next spring. The flowers grow out of stems and canes that developed in the previous year. Avoid spring pruning, as you will lop off flower buds before they can bloom.Prune to Maintain Shape and Desirable Growth
At the same time, look over your weigela shrubs as a whole. If they have become unruly and leggy, trim back the undesired growth, to maintain a cultivated appearance. Weigela that look as though they have run wild do not suit a garden. However, do not use hedge clippers for shaping plants such as weigela into a topiary shape. This will restrict their growth and blooming. Check for branches and canes that are crossing each other and thin these out. Weigelas need airflow and sunlight at the core to maintain the strength to keep producing leaves and flowers. As well, look for any branches near the roots that are spreading horizontally along the ground. Prune these right back to where they extend from the root. They can serve as vectors for fungi that will attack the roots. It took 2 years to bloom profusely. Did have to prune...think it may be too big for this location or not :)
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