Lee Anne, you do not need to keep them in the house under lights all year round but you may need to give them some extra light hours in the shorter days of the year. Like in spring and late summer/fall.
There are many northern growers, and they get them to bloom successfully, but you need to jump through a few more hoops than those of us lucky ones who have the right climate for them to begin with.
Tarev, Plumeria are native to the Caribbean and Central America. Similar climate, of course, to the Philippines!
