Q.Wisteria
My wisteria, which is on a north facing wall, started to flower but then we had a cold snap. The buds died, and since then there hasn’t been any growth. Will it come back to life and is there anything I can do to help it?

This article will help fix the cold damage: https://www.gardeningknowhow.com/plant-problems/environmental/tips-for-saving-cold-damaged-plants.htm
Also, I would cut it back to where the stems are still alive. This article will help you figure out where that is:
https://www.gardeningknowhow.com/plant-problems/environmental/how-to-tell-if-a-plant-is-dead-and-how-to-recover-an-almost-dead-plant.htm