Peonies are known for their ability to captivate a room, no matter what color. Symbolizing happiness, romance and joy, they are used primarily at weddings and special occasions. Nothing outshines a cluster of Peonies that are showcased in centerpieces or bouquets. Although their primary use is for weddings, Peonies can also be found at dinner parties and other social functions. Their petal composition and variety is a designer's dream. Striking, unique arrangements can be made with the peony.