Hey all, I have a few plumeria cuttings that I planted in the spring, and to my surprise, two of them are preparing to bloom this year. One of them in-particular has a 6 inch flowering stem shooting out with maturing buds on it. My concern is that its nearly october, overnight highs are still in the high 50s and low 60s, but thats not gonna last much longer. Ive read that if the bud stems die off when it goes into dormancy that it can rot the plant.

right now my plan is to bring this one indoors and put a grow light on it, but it could still die off in the process so I dont want this to hurt the plant because Im hoping for lots of flowers next growing season.

Any advice? Thanks in advance

Here's how it looks now

Oh, and also, when I do move my plant inside and attempt to keep his bloom alive, should I still be fertilizing when doing this? Basically treat it the same as if it were still outdoors?

Thanks for answering my noob questions!

I would take it inside and place it under a grow light. Since they are new cuttings, it won't hurt them to grow them through the dormancy season and continue growing during next grow season. Keep them inside all winter under grow lights and let them bloom. Then, bring them back out when your other plumerias start growing leaves outside. It will need lots of food while it is blooming. Treat it the same as if it is outdoors. You might want to consider getting a heat mat, depending on how cool your home is and how much heat radiates off the grow lights.

well, Im gonna have to take them all inside once it gets really cold out. I live in the Washington DC area, so it gets too cold here in the winter to keep them outdoors until spring.

If the bloom were to happen to die off for whatever reason, do I cut the bloom off at the base? Or do I need to cut the whole section of the plant off to completely remove the dead bloom? Or do I need to do anything at all?

@Greg683x

When I had a late bloom spike develop, it dried up once I brought the plant inside. so no worries about causing rot.

Do you know the name of this Plumeria? Appears to be a Red...
(IF) it's "Scott Pratt" aka "Kohala" …. it will be super sensitive to the drop of temps.

You do not need to cut the bloom spike off. With luck it may hang on and re-develop in the spring, otherwise it will fall off by itself (and I have never heard of that causing rot).
Reds do indeed tend to be a bit more cold sensitive but I am willing to bet it is not Scott Pratt. The leaves of that one have a somewhat bronze tinge.