Answer: Unfortunately, in "wisteria speak", a few years can even mean about 20 although it's not usually nearly that long especially for plants grown from cuttings or by grafting. First of all make sure you are not overfertilizing. Next, if you are truly frustrated, you can try "root pruning" by cutting deeply with a sharp spade on just one side of the vine. This may stress it and stimulate it to bloom. Alternatively, there is always patience. Maybe this will be the year!
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