Thanks for the input! I took what I was told with a grain of salt.
Quote: Originally Posted by ebredhawk if your cake gets wet or damp, you've probably got much bigger issues! honestly though, i have never heard of this happening. if your cake is going to be in an environment where it might "sweat" (and in this case you really only want to use fondant.. buttercream will break down in humidity) just make sure that the petals on the flowers aren't directly touching your cake. OR if you're really worried about it, avoid the problem completely by purchasing the flowers yourself and making sure they are a decent enough quality that the colors won't run.