There remains some debate over the hydrangea's symbolism – with some connecting it to vanity and boastfulness (perhaps reflecting its abundance of petals and lavish, rounded shape) and others suggesting that a bouquet of hydrangea expresses the giver's gratefulness for the recipient's understanding. Still others suggest it represents anything that's sincerely heartfelt. Despite this variation in flower meaning, there appears to be an overwhelming consensus that this 4th wedding anniversary flower possesses enduring grace and beauty.