Wisteria flower buds question
This vine is 5 years old and in ground. I have mild winters of around 3C these days and spring is approaching in few weeks. My other gardening fellows nearby get their wisteria flowering in February-April. Mine is going dormant now, leaves are all yellow. My questions are as follows:
1- Are flower buds formed or yet to be formed?
2- The buds in pictures are flowers buds or growth buds?
3- Regarding pruning, you can see this vine growth is mostly vertical and not much side shoots. It blooms on old wood i have read. Is it necessary to prune it now?
4- I have GA-3(gibberellic acid) and i read that it can promote flowering. So can i try GA-3 on it to trigger flowering? i use foliar spray of GA-3 but the foliage is almost dying now.
you can see the trunk and stems are thick and old
Thanks in advance.