I'm a newcomer to this forum. Actually didn't know it existed. I have become a nut over Columnea species. They are not the easiest to come by but I have had very good luck growing them. Most are in a growing area where the winter temperatures are about 50F minimum and the humidity is 70% or more most of the time. Most all have or are flowering. Many of the plants I have are still too small to share but many are not. So if anyone is like me and looking for a trading partner in this interesting genus of plants please let me know.
Here is a link that might be useful: My Columnea