Answer: It sounds as though your Buddleia needs some pruning! The normal course of events is to cut back the flowering branches as soon as they've finished flowering. This encourages the plant to produce new stems and branches. Some of the older branches can be cut all the way down to the ground, and the rest of the branches can be cut back by one-third to one-half. By pruning your Buddleia you'll keep it in a constant state of renewal, with new growth in the center and top of the plant.
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