My knockout rose looks like it is dying. Can you tell me what is wrong with it from the picture attached? It has good drainage and I don't know what's wrong.
If the rosebush is well watered and fed, then it could be that either the rosebush is not happy in the pot and needs to be planted in a bigger pot or in the ground. Or something got poured into the pot that is having a very negative effect upon the rosebush. If something got poured into the pot, the only option is to move the rosebush to a new pot with new soils.