I started getting my roses ready for summer,but I notices some of the stems were of a rusty tin brown color. I looked in most of my rose books and can not find anything that will help me out in that area. I live in Colorado so I usually start about now. to get my flowers ready. But could you possible tell me what might be wrong with them. They have been with me since 2015 and this is the first time I have ever seen them like this.
I started getting my roses ready for summer,but I notices some of the stems were of a rusty tin brown color. I looked in most of my rose books and can not find anything that will help me out in that area. I live in Colorado so I usually start about now. to get my flowers ready. But could you possible tell me what might be wrong with them. They have been with me since 2015 and this is the first time I have ever seen them like this.