I bought a wisteria plant 3-4 weeks ago. Want to grow it in a pot so bought a good big one but the leaves are turning brown and the plant is not growing.Wonder if the cold weather has anything to do with the fact that it is not doing well. Thank you.
You would be better to make a hole to plant it in the chosen position.
At present, it has probably dried out out had too much feed. This will improve when planted in the open ground.