My plumeria plant is about 4 ft. tall. It has been doing great until the past few weeks. The leaves have started falling off but new ones are coming back on. We live in central Florida and we had a few cool mornings where it got down in the upper 50's. I don't know if this had anything to do with it or not. Any info you can give me I would greatly appreciate it as I have had this as a baby and it has come a long way and I would really hate to lose it.