This poor thing got almost no sun until it got taller than the fence. It blooms constantly, but I may have to move it where it will get more sun. I had this one in the ground, and it almost died. So I potted it up. One bloom last year.
None Never gets chlorotic, despite the alkiline soil and being right by the foundation.
Long, flexible canes. Blooms in clusters. Gets a little mildew but it goes away. The occasional blackspot leaf. Blooms in spite of the fact that it gets almost no sun.