You have a couple of choices. It depends on what you would want for your plant. You will get many answers based on what each of us would do for ours.

You could keep a grow light on it, for at least 12-14 hours a day, especially if not much sun. Make sure you buy a heat matt to keep the soil in the pot over 65 everynight, or a pot that heats itself for tropicals. I think Logees sells them. They go for about 45 dollars.
Then, make sure day temps are well 70 to keep it growing very well. That is less than optimal. Those warm temps and those srumptious leaves might look real and feel very appetizing to the spidermites lurking in secret places.. But might work, especially if you do not mind your electric bill till spring is back, and the spidermites that will probably look at it with great interest, and all the work required to keep it healthy through such a difficult season for these plants that love the south.
It can get pretty involved, but there is lots of info here on lighting and the such. You will have to do all you can to prevent pest invasion..:-( But, it can be done..:-)

Or you could deal with a whole lot of nothing, much as I choose. Take the leaves off when they come in, provide a dark warm area, with very little light, keep the soil on the dry side, and let it rest till spring. Much easier. It will not die. Just don't over water.:-)

Wow, I had no idea I was in for all that work. I thought I'd just turn on the grow light and head south myself. I fought spidersmites and white flies on my hibiscus all winter too, just to have them refuse to bloom again this summer, so I don't want to go through that with my plumie.
I'm going to do what you do although it will be painful to pull off all the beautiful leaves. Should I bring the plant inside now (it's in the 50's at night)and let the leaves fall off naturally, or do I have to pull them off?
Some of the leaves are shriveling on the sides now anyway even though there's still new ones coming in on the tips.
Thanks very much, I really appreciate your advise.

I bring mine in when the nights hit 40's and they drop their leaves naturally. I stick them in my basement, any leaves left will get covered with spidermites and fall off. You could cut them off, I'll probably do that this year rather than deal with the bugs. My basement is warm because the furnace is there and I have a window where the plumies go. So they get bright light all winter, but they stay dormant. I only give water when they get bone dry. They stay that way until Spring and begin growth. I then bring them upstairs with my other plants and put in the windows until the weather warms up and they get moved outside.

This year I have two plants with large inflo's ready to bloom. I've been bringing them in and out. Too cold at night and I'm hoping to get the flowers...its so late for them to bloom, but I'm keeping my fingers crossed.

Jane

Ditto!! Exactly what jane does is what I do..

I did stick all mine in a portable greenhouse today..The ones with the late inflo's are growing like crazy. The one with the inflo is flowering like crazy. I will ake a pic..and post before Monday..

But when it gets to cold to keepthem in the greenhouse, I will do exactly what Jane does than..

:-) :-)

Mike, it was 38 degrees last night. We had light frost. Luckily I dragged the Plumies in. Put them out this afternoon when the temps got into the mid 60's. Got my first bloom, I'm thrilled! Will try to post a pic tomorrow.

The plants are loosing their leaves, yet the inflo's are still enlarging. I'm hoping the others open. I don't have a greenhouse. I'm getting muscles carrying them in and out. Trying to forestall dormancy.

Jane

You're not alone. Even in zone 7 we tend to do the plumeria shuffle. My low over the weekend was 51 which didn't worry me about leaving them outside, but I am moving the larger ones into the garage because there is an inflo emerging. I want to see that flower before letting it go dormant. You have to wonder what the neighbors think about us crazy plumeria movers. That is why I shuffle mine around at night. LOL.
{{gwi:1211933}}From Garden 2009

Playing plumie musical chairs? Fun ha..lol

NICE! Jane, your first bloom...Sweet!! Doesn't it make you feel it's worth the patience? Sort of like a fine wine after years of formenting....lol

Awsome....Just keep it in full sun, anywhere it gets warm, and keep it warm at night...
Wouldn't be nice if there was such a thing as plug in pots? All different sizes...We could plug them in at night to keep them warm without having to move them in every other day...Let's invent them..lol

How about walking on my roof everyday and night to move them, water them, and stare at them. My neighbor thinks I am crazy, like my cat that spends most of his time up there...Oh well....Whatever makes us happy right.

They say as long as you eat well, sleep well, and make a plumie flower, nothing to worry about.....;-)

meyermike: You're in luck. Check out the link to Logees for the heated pots. You'll need to rob a bank to buy them though.

Here is a link that might be useful: Logees heated pot

Mike- look into pig blankets. Bill