Say it with Flowers. I've heard that different kinds of flowers have certain meanings.
Flowers definitely have romantic meaning.
The interest then moved to France where the book Le Langage des Fleurs was printed with over 800 floral signs. Truth be told, most people have no clue about the historical and literal meanings of different varieties of flowers. That means to some extent, you can order what you think the receiver will enjoy. Start with your price. Let the florist know how much you'd like to spend.