I would like some opinions about cutting back butterfly bushes. My hubby does not like to cut back the butterfly bushes each year. They have grown so big. I would think it is better for them to be cut back each year. This year they seem to be leaning to one side because of a bad storm. I would like to have them cut back what do you think? When is the best time to cut them back in the spring or fall? Thanks for any help!