What happened?

I loved you so much, Supertunia Bordeaux. What did I do wrong?

How did you go from this:

To this:

It wasn't the temperature or lack of sunlight. I gave you water and fertilizer, but you still felt weak and wilted. I checked for root rot, but you seemed fine. I noticed that other locals had this problem with your cousins. I cut you back, and you're producing a few blooms, but nothing like before. Oh well. It was fun while it lasted, Bordeaux.