Why Isnt My Buddleia Flowering. Timing of pruning can affect blooms. Butterfly bushes require plenty of water particularly in the spring during their main period of growth.
20032020 You may find they bloom better if watered deeply and slowly during dry spells so the soil never dries out completely. Pruning should be done in the early spring leaving four to five buds at the base of each shoot. Even if there is no sign of rot or damage to existing branches cut all of the branches back to the ground in early spring.
Flowering slows when summer temperatures turn hot so some years you may have longer flowering than others.
There are a few reasons a butterfly bush will not bloom most of them related to stress. The blossoms are also beautiful in flower arrangements. Just because they can survive the winter does not mean they will come bouncing back from it especially if the weather has been particularly bad. 07012019 A high potash feed in spring will boost the flowering potential of your buddleia but keep deadheading for a long-lasting flowering period.