JoshP said:I recieved some hardy hibiscus seeds at a seed fair called "Pink Elephant" that look similar.
The leaves of bubble gum pink are wider than the hot pink hibiscus and texture of the leaves are different as well, it definitely look to be hibiscus mutabilis,
None of the leaves in those original photos look anything like Hibiscus mutabilis. They all look like typical Hibiscus moscheutos leaves. If you grew them from a "Hardy Hibiscus" parent then it couldn't be H. mutabilis, which is not used in any of the Hardy Hibiscus cultivars.