I don't know how to find my old posts, but I have rose bushes that were dying. actually one died, and I am not sure if the other will come back. But I did everything suggested, and now two of my roses are looking great. I added zinc, iron, and sulfur, and the new leaves are looking great. I also had my soil tested so I would know what to do. and then i recently added nitrogen. did the same to my lilac bush. now if i need to replace two rose bushes i will not be throwing out good money. but one bush in each space may be enough.