Be sure to take photos of the production. I'm sure your daughter will look fabulous and you are right...just a couple of roses and a sprig or two of baby's breath will do the trick.
Enjoy the evening and just remember...it's your daughter's big night.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.