I used to have a nice butterfly bush. Tall, willowy, lots of flowers swaying in the breeze. Butterflys loved it.
Then something happened. Last year I cut it down in March the same way I always have, but this time it didn't grow any new shoots except for one. All last summer I just had the one little stem. It only got to be about 12 inches high but it did get one flower on top. That was it. Since it wasn't completely dead I thought that this year even if not back to normal, it would start growing a lot more. Not so. This year it did managed to get 2 new stems, about 24 inches high, now with a flower on each. Maybe next year it will be up to three. Alas, what once was, is no longer. How pathetic is this poor thing?