But one has to keep plumerias inside for 1-2 months during winter as temperature at night is between 46-54 F. I have good news for you; you do not need to bring most plumeria varieties inside when the nighttime temperatures are in that range unless you wish to prevent dormancy by using heat and grow lights. If your plumeria has dark green shiny leaves with raised veins on the undersides of the leaves, then you may have a plumeria obtusa cultivar, which is evergreen and probably should be brought in during your winter. Your flower does look like a Celedine, which is a plumeria rubra cultivar and therefore can be allowed to go dormant outside in cool dry winter conditions. Dry is the key word here; plumeria will rot if their roots are cold and wet during winter dormancy.

i have grown them from fruit (large glossy leaves), but i am now looking to order seeds to try other varieties. i need one that will tolerate wind, and i would like to try others for fragrance/flower/fruit Thanks for your help

Erythrostemon gilliesii. Aka Caesalpinia gilliesii. Not hardy for us in the U.K., I'm afraid, Andy.

This is for you Nik. I was reading latest news on CNN. https://www.google.com/url?sa=t&source=web&rct=j&url=https://amp.cnn.com/cnn/2018/05/18/europe/pompeii-horse-remains-trnd/index.html&ved=2ahUKEwj_hbWMnJDbAhXHxVkKHc2KCAQQFjAIegQIAhAB&usg=AOvVaw09RToDVJSAI4CBaMW6LjqJ&ampcf=1 Jin