The symbolism associated with the iris dates back to ancient Greek mythology. The goddess ‘Iris’ in Greek mythology acted a link between heaven and earth. It is said that purple iris flowers were planted over the graves of women to summon the goddess to guide them on their journey to heaven. Other symbolist meanings to the flower are wisdom, cherished friendship, hope and promise in love. The fleur-de-lis, one of the most well known of all symbols, is derived from the shape of the iris flower. The fleur-de-lis is a symbol of the royal family in France and the state flower of Tennessee.