The time it takes for Plumeria to bloom can vary depending on factors such as the cultivar, growing conditions, and the age of the plant. In general, Plumeria starts producing flowers after about two to three years from the time of germination or when propagated from cuttings. Some well-established plants may bloom sooner, while others may take longer. Providing the plant with optimal care, including ample sunlight, proper fertilization, and well-draining soil, can promote earlier blooming in younger Plumeria plants.