My wife just sent me the picture of a greenhouse that was on sale, and it got me thinking about something. It is one of those greenhouses that goes up and down relatively easily, and it is not gigantic. However, it might be big enough to simply put over the top of my "plumeria bed" during the winter. Our temperatures got down to the mid-teens once this year, and a few nights in the high teens/low 20s. If I could find an appropriate heater, does anyone think this idea has merit? Does anyone else in this zone or others do anything similar? If it would work, it would sure save me a lot of time taking plants in and out. Thoughts?