I am looking ahead to fall. These monsters are close to 20 years old. They did not bloom very good for me last year but that was my fault. I was extremely remiss in my fertilizing so I take the blame. How hard can I prune these back when I put them in their winter accommodations? The light is not good, but heated to 58 when the passive solar is not heating. (at night, etc.) I assume just enough water to keep them from drying out? I do not have my "real" greenhouse any more so have to make do with what I have. I live in Wisconsin.
