My plumeria are in my sunroom. Should I let them go dormant our try to force blooms? I'd really love to have some blooms!

If these are rooted cuttings or otherwise mature plants you can force them to continue - if they are seedlings the chances of seeing blooms in the winter are very slim.
You will need grow lights to supplement the shorter daylight hours.

Julie, I won't have any cuttings of the 'Honeysuckle Rose'. Though it has 3 tips forming, the inflo are in bloom and loaded with five pair of seed-pods. Those tips are far too short to cut and besides, I want to see those seed-pods reach full maturity. I do have that 'DD's Delight' with three branches. One of those branches has 4 tips, one has 2 tips, and one is still a single tip. I would not cut the multiple tip branches but could harvest the single tip. That branch is three feet tall and almost 2" thick. As a bonus, the flowers are more beautiful and longer-lasting than the 'Honeysuckle Rose'. The fragrance of the 'DD's Delight' is rosy with a hint of baby powder.

None of my blooming plumeria, or anything else in the solarium, will receive supplemental light. They will all just have to make do with whatever fall/winter natural light there is. Since growing these plants inside is basically a first for me, this is all just an experiment. I will know far more by spring than I do right now. So far all the plants are growing well and continue to produce flowers and leaves. A few leaves are lost each week but not really enough to say they are entering "hard" dormancy. The pictures below show lots of healthy leaves.


'DD's Delight' 4 tips


'DD's Delight' 2 tips


'DD's Delight' 1 tip

Dutchlady, they are blooming size plants, so I'm going to go for blooms! Actually, I got the cuttings from Ken last year. I put them outside this summer and they just grew like crazy!

Ken, I'd love to have a DD's Delight cutting. Maybe if you'll be on the coast any time for the holidays, I could get it from you. Just let me know. Thanks so much!

Julie, we probably won't be coming down any time soon but we will see the Mayfield's when we play in our bowl game in early January. They are also meeting us in April for the Asheville (NC) Orchid Festival/AOS Spring Meeting. This will be the first sanctioned AOS exhibit I have been to in almost four decades.

Dutchlady, they are blooming size plants, so I'm going to go for blooms! Actually, I got the cuttings from Ken last year. I put them outside this summer and they just grew like crazy!

Ken, I'd love to have a DD's Delight cutting. Maybe if you'll be on the coast any time for the holidays, I could get it from you. Just let me know. Thanks so much!

Julie, we won't be coming to the MS Gulf Coast. We'll see the Mayfield's at the bowl game and then again in Asheville in April.

My only mature ** Plumeria was brought in ~ Nov 12th or so. It looked wonderful and I placed it with East window exposure a few feet from the window in my Living Room. It has dropped two leaves, but has a ton more left on (well about 20). They all look fine. It has two branches and the growth tips look very healthy with small new leaves forming. I have given it a small amount of water twice.

Will this ever shut down and go dormant? Or might it just slow way down and retain its leaves? I do intend to give it a bit of water periodically.

(Last year I kept it in my basement under lights and gave it a bit of water a few times - I got it as a rooted plant in August and it dropped all its leaves within a week of delivery and they never came back.)

** I have 2 more - one a cutting and one a rooted cutting that I picked up from Ken. They are in my basement under lights. Both dropped all their leaves. I have been misting them lightly every few days.

Oh, well, Ken! I guess I'll have to wait on a cutting! Doing Christmas for 5 kids and 5 grandchildren, a DIL, a SIL, and my mom has me tapped out! But I can baby the ones I have for now!

Only one son, and he's much older than you, and no grandchildren..........ever. I have more time on my hands.

Ken, you and your wife may come to our family gathering on January 3! My entire clan will be here and I promise you will not have have any spare time on your hands! Consider this a formal invitation!

Here's a little update concerning my plumeria, those now growing in the solarium. The first stem that bloomed on Jack's Compact yellow is finished but the second stem began to flower this morning. A Celadine is loading up with really large buds (for a Celadine). This could be the Celadine var. Ramsey, with huge, yellow flowers. The 'DD's Delight' continues to bloom on two stems and both stems are still loaded with flowers and buds. This baby has been in bloom for over two months. The 'K's Honeysuckle Rose' is still blooming but not a lot going on with her other than the pretty, pink seed-pods.

beautiful!

Very lovely @DrDawg.

Ken - on the rooted Celadine I got from you. I watered it when it first came in and it subsequently did lose all its leaves. I have misted it every few days but not watered. It is under lights in my basement. For the rest of winter, I should only only water it sparingly and infrequently. Right? I do plan to also mist it every now and then. I am also misting the unrooted cutting. Gave it a small drink when I got it and nothing since.

The other that I mentioned above in Post #1001493 still has like 13 or 14 leaves. I am letting it get quite dry and then watering a bit. If it drops all its leaves, will probably move to my basement grow area.

David, until this year, I have always forced all my plumeria into total dormancy, both rooted and cuttings. I have done this for 25 years. That was all I knew to do. This year will be the first year that I have attempted to keep my plumeria (a few of them) growing through the winter months. I still restrict water to some extent, and of course fertilizer, but I want to see if I can keep them leafed-out. So, this year is an experiment year for me. I can't tell you what to do since I really don't know. I will know a heck of a lot more in a few months. All I can recommend is that you follow my postings and the pictures for the winter months to come.

The one I am most concerned about is the unrooted cutting.

Very pretty Ken. Nice that they are still blooming this time of year.

Ken are those seed pods heavy? They look like they are and would cause the plant to bend over?

No, Lucky. The stems that support them are stout and the pods don't seem to bend anything at all. At least so far. I don't know whether they require support but am thinking not.

David, I have dozens of cutting bundled in three, 5 gallon buckets. The cuttings sit in coarse perlite and the buckets are in my "Everything Else" greenhouse. I mist/spray the terminal leaves every few weeks but that's it. It really doesn't matter whether these cuttings get light or not. Mine get lots of bright light. I maintain my greenhouse around 58-60F but on really cold nights, they might get down to the low 50's briefly. Now with my new, 240V heaters, that 58-60F may be maintained better than my 120V heaters were able to do.

Thanks. That is what I am doing and planned to do on the cutting. Since I have never had one before, that is my biggest concern.

on the new heater. It should be much more efficient. As you likely know, electric resistance heat is one of the least efficient forms of heat. (My Engineer side kicks in every now and then.)