I am having work done in my garden and had to move my buddleia. Now it's wilted. How can I revive it?
When you dug up the plant, you left some of the roots behind. Now there aren't enough roots to support all the leaves. The answer is to prune off some of the branches. Make sure the earth where you replant has been well-worked, so the new roots can easily grow into it, and make sure the root ball and surrounding area get plenty of water. Here's an article on transplanting that might offer some more tips: https://www.gardeningknowhow.com/ornamental/shrubs/butterfly-bush/tips-for-transplanting-a-butterfly-bush.htm