I think I read that it would be 3 years before a plumeria grown from seed would flower so you may be close to that. Just give it as much sun as you can, as well as a general purpose, slow release fertilizer with a NPK of about 11-11-11 with micro-nutrients (some people like to use a higher number on the phosphorus but just do not go "overboard" as large phosphorus applications too often can become toxic).

It took 3 years for mine from seed to bloom, but it is a good feeling!

I have 05 seedlings 4 ft tall that have NEVER

rox145, Where do you live and where do they grow?

rox146, check sunlight (> 6 hours of direct sun), watering, fertilizer (if potted) and pests. Based on age, not how tall they are, I would expect blooms on or after year 3. If grown indoors year around, they may need extra sunlight to bloom.

My own seedlings took 6-10 years to bloom, and the first flowers were small and few. Even cuttings take a long time... seems like they all started blooming when they got close to 5 feet tall.

Even in zone 9b I have an unheated greenhouse for winter protection, but adding a soil heating cable in the ground under the pots has made a huge difference in how soon they start to leaf out in Spring.

Considering your geographic location it’s going to be tough with the short growing season. As much sun as possble is an absolute must. Routine and consistent fertilizing is another must. Consider getting a heat mat to place the containers on. A bit of luck and one or two may bloom for you around 3-5 years.

Kathy, sunny southern california a block from the beach. Outdoors year round. Not all plumerias bloom or are happy bloomers or have a scent.

All my seedlings are in the ground and well over 4 ft, some 5 and many many tips. Some just as wide.