I recall seeing die back to what I believe may have been caused by winter frost??? And I have a old Blaze climber (out of control) that I pruned last year apparently incorrectly. I watched a video last night (Zimmerman) that showed the correct way to prune a climber. I learned to cut the laterals not the end of the canes. I learned that i have to train the canes horizontal, not allow them to grow straight up. To make a long story short, I bought some of my roses when I first move here about 18 yrs. ago. Then went back to work. Now I am retired and I am trying to straighten everything out. I did purchase new roses last year and ordered a few this year. I am eager to learn. Thanks for your time.