I have grown schefflera for many years (part of my tropical plant inventory) and I have never once seen a bloom on any of them. Perhaps it is because I keep mine trimmed back, small enough so that they can be shipped. I have one plant that is at least 7-8 years old, but I use it to root cuttings from and though the base (multiple bases actually) is thick, I never let it get over 5' high and about as wide. Like my old fiddle leaf ficus, this schefflera is my "Mother" plant.
