Well, humidity I have!! Too much most of the time. I think they would do great here and they are grown commercially in Veracruz which is just across the Gulf. They are starting to grow dendrobians here and I have quite a few of those but I'd really love some vandas. One of these days I'm going to make a road trip to the nurseries in Veracruz, I will need lots of space though, there are so many plants I want.