Lily of the valleya favorite bloom among royals, from the Duchess of Cambridge to Grace Kelly, Princess of Monacois the classic wedding flower. To keep it fresh and modern, florist Kate Holt, of Flower Wild in Burbank, California, wrapped it with lamb's ear. "Lily of the valley is a subtle flower," says Holt. "It would complement a delicate, lacy gown or one with a beaded accent." This flower has a spring blooming season, but you can find it throughout the summer.