Centuries ago, in medieval times, a man would be given and "wear a lady's colors" either a ribbon or flower on his left arm before battle or a joust. This was considered the epitome of chivalry since it signified that he was fighting specifically for her. Today, men wear a boutonniere of a flower from the girl's corsage on their left side, just above the heart.
"Wear your heart on your sleeve"
A boutonniere is usually one large bloom or a group of two or three smaller blooms from the girl's corsage
Modern prom boutonnieres can be flashy but also keep in mind that you need to be comfortable with it
Usually, the boutonniere will match your date's corsage
Check out our prom boutonniere gallery to get some ideas!