I will also be posting this on the iris forum but I wanted to know if any gardeners in colder zones of Canada have successfully grown 'Startrek Enterprise' iris? I was told by a grower that he has lost it quite a few times over the past few years and he will no longer be selling it because he considers it tender. He is in zone 5. If anyone here has it, has it survived the winters? How does it perform? I think this is a gorgeous iris and would like to add it to my group. Any advice? Marg