Anne - Maybe next year? Can you tell how big the rhizomes are? How tall are the plants? Are they in the ground for your Zone?
Any seed that grows in boulbous form has to spend time building the bulbous structure til it becomes mature enough to bloom.
I have no idea how long this is for Hedychiums. I also do not know how long for the following which I am growing from seeds:
Siberian Iris
Dietes
Dierama
I also grow a lot of trees from seed for Bonsai. One thing I know is that I should have started not 2 years ago, but 30 years ago.
Does hedychium form seeds on its own without a pollinator partner?