More Wisteria queries. Do they respond to hard pruning?
I have a Wisteria in a 45 x 45 x 45cm container which was purchased already trained. It had two main branches, one went in a zigzag to the top, while the other went straight to the top on the right and then branched a bit. It did well and flowered for about 5 years, but now the zigzagged stem has rotted off and I have removed it, while the other stem has survived but looks a bit odd. The stem that died was on the left, NOT the stump seen on the right. My question is, will it shoot out lower down if I cut it? I am hoping I can then start retraining it, but perhaps with one main stem. It was a significant birthday present, so I would like to save it if I could.