Hello Scout91, you can still certainly see Plumerias bloom even grown in containers, just depends on some factors like full sun exposure, watering, humidity. There are also some cultivars that are really much more high humidity needy, so it is understandably quite frustrating to wake them up if ambient conditions are not favorable.
Try to look for Plumeria Celadine, I have tried that and it blooms here in my area. Took me awhile to understand it, but it is one of the more cold temp tolerant varieties, so it may have a later blooming period.
I can only grow Plumerias in containers here, since we get cold inversion during winter, and winter is our rainy season too. Cold and wet tandem is not good for Plumerias as is typical with most succulents. So during winter time, I respect my Plumeria's dormancy, so I just overwinter them indoors, then wait patiently for it to wake up, wait patiently for outdoor temperatures to be okay before I bring them out again in mid to late Spring. Oftentimes, it is a game of patience with Plumerias, since we have varying growing environments so got to pay attention closely to temperatures and light levels.When the long hot and dry season is here, my Plumies will be out basking in the sun, takes all the dry heat but have to do daily watering to compensate for our lousy humidity levels.
