Real ones look slightly prettier... unless they bruise, in which case they don't. Dark colored ones, like red roses can also stain the floor and possibly even the hem of your dress. (View Post)
You could also let them carry something like a clutch purse, a fan, candles, etc. A single statement flower like a perfect red rose or a fluffy peony would also look classy for the young bridesmaids. (View Post)