growing vandas outside in N. CA

[Leisurely]

I live in Central Florida near Orlando and I have a greenhouse but a majority of the local society members who don't leave their vandas outside until the temps are supposed to drop below 45F. I have three of the large Renantheras and V. Miss Joaquim, a Teres hybrid, that I have grow outside for several years and they have shown no damage with temps in the low thirties for a few hours. (Protected from frost of course)