I do see your point, and appreciate your taking the trouble to post a comment.
Awkwardly as it seems, the actual reason for trying ZD in a pot is the fact that this was a present to me from a foreign friend (it is not grown in our country, at least not available commercially) plus the severe space constraints I have in my small urban garden.
Apart from that, ZD is usually described a medium-sized climber, and, as such, probably more manageable than a large one. Besides, however large and vigorous, it cannot be compared to a tree. I have seem lemon trees and other citruses growing in pots in sunny patios nearby.
Naturally, altough they do pretty well, they never get to grow as large as they would in a more appropriate environment.
I was just wondering whether the idea was too off-the-wall, or in case someone could provide some specific advice that would help me keep the plant with some mutual degree of satisfaction.