Yes but it may vary so do not "fixate" on a certain number of years. Generally, small plumeria seedlings will not bloom until the tree is three years old or more. They may bloom sooner if given the conditions that they need for blossom production. Some plants may also take a while longer for various reasons. For example: the current "cloudy" weather in CA caused by the fires is not considered "basic conditions for bloom production" if the plants are not getting more than 6 hours of direct sunlight every day. It may delay or may not delay bloomage on tiny plants for example.
