The case of the invisible wisteria

I got all excited last year when, finally, the wisteria bloomed after five years in the ground, all the while growing a thicker and thicker trunk and spreading more and more roots through its limited bed. I had expected this masterful behavior, but was willing to tolerate it for the flowers. I do love wisteria.

When I saw (and smelled) the plethora of blossoms that have appeared this year, it was difficult to be feel joy. The thing is, my wisteria is totally invisible to the naked (or clothed) eye. Sure, there are ample flowers, but to see them you have to walk through a narrow garden passage, under the overhanging branches, and look up. Voila.

It is not clear what I've done wrong here. Should the spring pruning be more rigorous? Is this a type that doesn't flower until after the branches have fully leafed out? Normally you see the flowers before the leaves, but that's not what is happening here.

I have no answer to this, but plan to look up different cultivars and see what might be the issue. In the meantime, I'll enjoy them however I can.