Q.transplanting butterfly bushes
I had to transplant all four butterfly bushes. They were 3 yrs old. Transplanted a 4 ft one in August. It’s super hot! Has some new blooms still on it. Should I prune now? Any tips other than lots of water?
August heat is a tough time for to move the plants, but water will be the key to helping them to become established and reduce the stress.
Add 2 to 3 inches of hardwood mulch to help with moisture retention.
I would wait until the plants die down on their own. This will help feed the roots to store energy for the winter.
https://www.gardeningknowhow.com/ornamental/shrubs/butterfly-bush/butterfly-bush-care.htm