I have made royal icing petunia flowers for a wedding cake, can they be refridgeated after I put them on the cake or will that cause a problem.
no don't refrigerate RI. The humidity in the fridge will wilt it. What about the cake requires it to be in the refrigerator anyway? A perishable filling?
It will be filled with a crushedand drained pineapple from a can and mixed with b/c.