Posted: 28/03/2015 at 14:13
I don't know if plants like being pruned but I think most people cut back ribes hard after flowering, or after it would have flowered in your case.
But I wouldn't have thought the lack of pruning would stop it flowering. Pruning is what we do to suit us. Plants get on very well left to themselves.
Occasionally you get a plant that just doesn't flower. Years ago I had 2 weigelas, one never did flower though the 2 were the same size and looked just the same except for flowers.
I'd prune it, feed it, threaten it, and if it doesn't perform next year, dig it up.