In heraldry, the lily is a refined emblem of purity, innocence, beauty, hope, and spiritual grace. Its white blossom has long been associated with chastity and moral clarity, especially in Christian art, where the lily is closely linked with the Virgin Mary and the Annunciation. In a coat of arms, the lily may therefore suggest faith, virtue, noble conduct, or a family’s devotion to religious ideals. It can also represent cultivated beauty, garden heritage, peace, and the flourishing of a household or community.

The lily must be distinguished from the fleur-de-lis, which is a stylized lily or iris with its own powerful associations of monarchy, sovereignty, France, and divine favor. Natural lilies appear more botanically, often with petals, stalk, and leaves, while the fleur-de-lis is a formal heraldic charge. Both share ideas of purity and dignity, but the natural lily is usually gentler and more devotional. Lilies appear in ecclesiastical arms, Marian imagery, and institutions dedicated to education, charity, or religious service. They may also be used as canting charges for names such as Lilly, Lillie, Lilley, or places with similar names.

As a heraldic charge, the lily may be shown slipped, stalked, leaved, flowering, or arranged in groups. It can accompany crosses, stars, books, crowns, or hearts to intensify meanings of faith, learning, heavenly grace, or noble affection. Examples of floral charges can be explored through Heraldry of the World, while terminology and broader heraldic practice are explained by Parker’s A Glossary of Terms Used in Heraldry, the Heraldry Society, and the College of Arms. In coats of arms, the lily remains a luminous symbol of purity, devotion, refined beauty, and honorable growth.