with Hetty. This year, I did not get any seedpods at all, but part of the reason is that it had been raining a lot and the pond at the back of our house got sprayed a lot this year to prevent mosquitoes. Some of my plumerias attempted to form seedpods earlier this year (before the rainy season) but got aborted. The only reason I could think of that they fell off is related to too much rain around July and August. (Same reason that some of my outside Catt orchids sheaths failed to bloom because of too much rain.) I think plumerias prefer a period where the soil (or media) has a chance to dry before getting watered again.
I am not sure exactly why Ken had never seen seedpods before, not sure if he cuts the Branches with inflo too soon, not realizing there were seedpods on it. Only Ken can answer that. I don't cut any branches with inflo still intact, I let the inflo fall off on its own.