This question was asked by @ Kelli in a different forum. I'd like to reply to it here so others can add their suggestions:

'Hetty, this is off subject, but how do I get my plumeria to bloom? I've had it for years and it must be about 4 feet tall but it has never bloomed. It has three branches. I think it is supposed to have white flowers but it's been so long since I got it that I forget. It's in a pot and it gets full sun. I water it once a week. I feed it once in a blue moon.'

I'd first like to know if it was a cutting that you rooted, or possibly a seedling? Seedlings can take several years to bloom. Then I would say - keeping in mind that these are meant to be trees, what size pot is this plant in? Full sun should work, and I assume in California you would need to water it every week, and feeding every once in a while should be fine too.

If this was my plant (without knowing more about it) I would repot it in fresh soil and give it a good timed-release fertilizer. And then it might just be a case of being patient. Some plumeria are generous bloomers and others are more stingy..... There are plumeria in my yard that put on a great show every year, and others that bloom maybe once every three or four years.... Maybe you need to get a few more??

Thank you for the info. I got the plant as a small growing plant. I don't know if it came from a cutting or was grown from seed. I don't remember anymore what it looked like.

Mine probably could stand to be repotted.

Kelli......................... that plant is a TREE..... it needs much more space for its roots than you are giving it. Can you not put it in the ground? Honestly, it is severely stunted. Either get a (at least) 15 gal pot or put it in the ground. In the winter, if you need to, you can pull it up and store it bare rooted. But it needs room to grow.

We've about run out of places in the ground to plant things and our soil is heavy clay. (Just for fun, I have made pottery out of it.) However, I will get a bigger pot. See the green pot behind it? Is that about the right size?

It will do. Please do not put a saucer underneath it. Plumeria do not like wet feet.

Gotcha

I have had this one since '09, never bloomed...nearly killed it several times...with water, in the winter...

but look--it lived and is blooming now for the first time ever

No watering when the plant is dormant. You don't drink when you're sleeping do you?

Turns out to be a beauty for sure!

Nope!
I don't know why that is such a difficult thing to resist

I finally got around to transplanting my plumeria about a month ago. It hasn't bloomed but it is much happier now. The leaves are bigger and more numerous.

I think part of the problem is I am not watering enough. I am watering it twice a week now and it looks happier.

Good. Maybe your plant will bloom this year.

As to the question "How do I get my plumeria to bloom?" Mine responds really well with SuperBloom. Last year I did not use SuperBloom and I had a very disappointing bloom season. This year I used SuperBloom and a little dose of super thrive and my plumerias are blooming.

I'm really bad about stunting my plumerias too but when I repotted them to bigger pots this year, I got bigger blooms.

SUNLIGHT is the key ingredient to get plumerias to bloom. At least 6 hours daily. A good fertilizer will assist, such as any LOW nitrogen fertilizer: 10-10-20; nitrogen is the first number. No higher than15. In summer, plumerias are heavy feeders whereas in winter they are dormant for most areas. Keep well fed once or twice monthly in summer; in winter, NO WATER while they are dormant. This assumes your growing area experiences frost or freeze in winter.

Charmin12 meant to say no frost or freeze I think. Just so nobody gets mixed up. Good advice though.