Single, larger blossom flowers, such as roses, carnations, zinnias, tulips or lilies, usually make up the focal points of a piece. Taller stems with multiple flowers can balance things nicely. Delphinium, gladiolus, and snapdragon are good examples of flowers that can add extra height and texture. "Filler" flowers, or stems with many small buds, are great for topping of a bouquet with a full and delicate look.
In the mid┯th century Victorian England the tussie_mussie (small bouquet of flowers) were exchanged between Victorian sweethearts expressing secret love messages; a gift of a traditional Valentine flower unique and personal and very fashionable. Victorians considered a young lady to be cultured if she understood the study of flowers.