Wisteria is a mysterious plant. I am not good about taking Before and After photographs, but above you can see my wisteria in early May last year.
This is my wisteria yesterday. My husband and son cut out the main trunk which was dead, leaving us with a young, lively trunk. There is another shoot coming up from the root that we will allow to join this trunk. I am glad it is not totally dead, and hope it will grow lushly and give us cooling summer shade.