It was hard to judge when the buds would open as there is not that much difference between the buds and flowers. However it finally did open; the flowers have no scent and as of this writing, I am unsure how long they last before falling off. I did probe the flowers with a cat whisker in the off chance that they could easily be pollinated.
![](https://i0.wp.com/vermonthoyas.com/vhwp/wp-content/uploads/2021/04/Hoya-insularis-04012021p.jpg?resize=625%2C569&ssl=1)