There should be communication between the florist and caker prior to the day of delivery. That should take care of this issue. I always initiated the contact since I knew that brides may forget or not bother with this detail. (BTW, this is not a situation that happens a lot since most brides do not want fresh flowers.) If there is a problem at the time of delivery, just place the darn flowers and smile.
8/4/14 at 4:33am