Sean,
Nymphaea 'Tropic Sunset' is a great addition to the autumn shade plants.
It is a better bloomer than Barbara Barnett, Afterglow or AlbertGreenberg.
It is viviparous but it waits until the plant is fully mature usually.
Dixie cup style it doesn't work.
There is not really strong vitality in the vivips either but I get so many late season that I get multiples that make it through so even if I were to lose a plant, I would have extras the next season.
Except for the single Nymphaea 'Hot Pink' bloom on the left this is all blooms from 2 plants of N. 'Tropic Sunset'
Thanks so much for the info on this Tim, I may still seek it out some day as an addition for my display pond.
I have always loved the autumn shades and this one is a definite contender.
Cheers,
Sean