have a question about gumpaste before working with it for the first time. I noticed when I make accents with MMF, once I place them on a cake, mmf softens after a while. Does gumpaste do the same thing when it comes in contact with buttercream or does it stay stiff?
All gumpaste will get soft on buttercream icing. If this is a concern then add the flowers at the latest time possible. If the flowers are small then the softening probably not cause any problems.