I was given a 1 yr old potted mimosa and planted in in late summer 03. Mimi (I name all my trees, shrubs) is doing well. Too well perhaps. She's now about 7' tall. Quite lanky, I'd say. We have her staked up to prevent wind damage. She does have some lower growth/fullness/additional branches, at about the 2' level. I would like to see her grow into a fuller tree. When and where (on her 7' trunk) do I prune her? Now, Fall? Winter or spring. We have very mild winters (freezing but not often below) in my area, very little snow (less than 7").
She's a keeper and I want to do what's best for her. Thanks to anyone who can lend me some of their experience.