Does anyone remember us being encouraged to talk to our plants? I recall being told, it could help them grow. Now we know for sure, they don’t hear, but they can react to sound (vibrations) and protect themselves.
In my opinion, for us regular gardeners, my ability to ‘detect’ an issue is generally more important. Why for example, has that rose after 10 years, just curled up and died.
Put on your detective’s hat, and look at your plant, ask questions and see what information the plant is visually giving to you. Are the branches looking stressed, are the leaves dried, droopy, dead? Are there aphids on them? There are so many possibilities, use that and a good book, to try and get to the bottom of it. Here’s another scenario, one I have encountered for 10-15 years now, and I have been tripped up by it.