It refers to the way flowers were used in the Victorian era to send secretive, silent messages. For example, if a flower was handed to you with the person’s right hand, that meant “yes.” If it was handed to you with their left hand, that meant “no.” Each type of flower also had its own symbolic meaning as well. For example, people would give acacia or periwinkle to a new friend, or a forget-me-not to someone who was moving away.