How do you overwinter your plants? A close friend lives in Plano and she lost a good sized Sago I'd given her even though it was in her unheated garage during cold spells.
I only have one plumeria that was in ground and almost lost in that ghastly freeze a couple of winter ago but I've gotten the plumeria itch just looking at the plants posted here.
These plumeria people are really enablers for plant addicts