May Birth Flower

May's birth flowers are lily of the valley and hawthorn — a fragile, sweetly fragrant woodland flower paired with the blossom of a hardy, thorny tree long woven into British folk custom.

Lily of the Valley: Delicate, Fragrant, and Genuinely Toxic

Lily of the valley (Convallaria majalis) produces small, bell-shaped white flowers along an arching stem and carries one of the most recognizable fragrances in perfumery — so distinctive that 'muguet,' its French name, has become a standalone fragrance category, despite the fact that the flower's true scent is notoriously difficult to extract directly and is usually recreated synthetically for use in perfume. In French tradition, lily of the valley is closely tied to May Day (May 1st, or Fête du Muguet), when it's customary to gift sprigs of the flower for good luck — a custom that reportedly dates back to the French royal court in the 16th century and remains widely observed in France today, including a relaxed exemption in French law that allows individuals to sell it on that specific day without a standard vendor's license. Despite its delicate, cheerful appearance, every part of the plant is genuinely toxic if ingested, containing cardiac glycosides similar in effect to those found in foxglove — a detail worth knowing for anyone growing it around children or pets.

Hawthorn: A Tree Bound Up in British Folk Tradition

Hawthorn (most commonly Crataegus monogyna in Britain) produces clusters of small white or pink blossoms in late spring, and the tree carries an unusually rich body of British and Irish folklore — it was traditionally considered a fairy tree in Celtic folk belief, and cutting one down alone or out of season was widely regarded as inviting bad luck, a superstition serious enough that some hawthorn trees were deliberately left standing in the middle of fields or construction sites rather than removed. Hawthorn blossom is also directly tied to the May Day tradition in Britain: it was traditionally gathered for May Day garlands and maypole decoration, and the tree's other common name, 'may' or 'mayflower,' comes directly from its blooming season and its role in that specific seasonal custom — the Mayflower ship itself is generally believed to have been named after the blossom rather than the other way around.

Two Flowers Tied to the Same Spring Ritual

Both of May's birth flowers converge on the same seasonal moment — the very start of the month — through two entirely separate folk traditions on opposite sides of the English Channel: lily of the valley's French May Day gift-giving custom, and hawthorn's role in British May Day garlands and maypole decoration, each independently marking the same turn into full spring.

Lily of the Valley as a National Symbol and Wedding Flower

Lily of the valley holds official status as the national flower of Finland, chosen for its widespread presence across Finnish woodlands and its long-standing place in Finnish folk tradition. The flower also carries a specific, well-documented royal wedding history in Britain: lily of the valley appeared in Queen (then Princess) Elizabeth II's 1947 wedding bouquet, and it has recurred in several subsequent royal wedding bouquets since, including Catherine, Princess of Wales's 2011 bouquet — a continuity credited partly to the flower's association with happiness and humility in Victorian floriography, and partly simply to royal wedding tradition referencing earlier royal weddings directly.

Hawthorn's Medicinal Use and Hedgerow History

Beyond its folkloric fairy-tree reputation, hawthorn has genuine, still-actively-studied medicinal use: extracts from hawthorn berries, leaves, and flowers have long been used in European herbal medicine to support cardiovascular health, and hawthorn extract remains a subject of ongoing clinical research and is sold as an over-the-counter herbal supplement in several countries, with some (though not universally conclusive) clinical evidence supporting mild benefits for certain heart-related symptoms. Hawthorn also has a distinct agricultural history in the English countryside as a hedging plant: its dense, thorny growth made it the standard choice for centuries of English hedgerow planting and the traditional countryside craft of 'hedge laying' — weaving and partially cutting hawthorn stems to form a dense, stock-proof living fence — a rural land-management practice that shaped much of the English countryside's visual character and is still practiced by specialist hedge-layers today.

Lily of the Valley in Modern Perfumery Branding

Beyond its French May Day custom, lily of the valley (muguet) fragrance has become one of the signature scent categories in modern Western perfumery, referenced by name in numerous commercial fragrances despite the extraction difficulty described above, with perfume houses relying on complex synthetic reconstructions to approximate the flower's genuinely difficult-to-capture natural scent profile. Christian Dior's 1956 fragrance 'Diorissimo,' built specifically around a muguet accord, is widely cited in perfumery history as one of the most technically accomplished attempts to recreate lily of the valley's scent synthetically, illustrating just how significant a challenge the real flower's fragrance has posed to perfumers for well over a century.

Haws: A Genuinely Edible Berry, Unlike Its May Co-Star

Hawthorn's small red berries, called haws, stand in real contrast to lily of the valley's toxicity: haws have a long, documented history of being cooked into jams, jellies, wine, and other traditional preserves across parts of rural Europe, particularly in Britain, where hedgerow foraging for haws alongside blackberries and elderberries has been a genuine seasonal countryside practice for generations. This is worth flagging directly given how toxic May's other birth flower is — the two plants share a month and, loosely, some structural resemblance in their small clustered blooms, but one produces a genuinely edible, traditionally foraged fruit while the other is dangerous even in small doses, a distinction worth knowing for anyone gardening with both.

Hawthorn Grafting and a Nursery-Trade Term for Lily of the Valley

Hawthorn's tough, disease-resistant rootstock has a separate practical horticultural use beyond hedging: certain pear varieties have historically been grafted onto hawthorn rootstock to improve cold tolerance in some growing regions, taking advantage of the two plants' shared membership in the rose family, Rosaceae. In the cut-flower and nursery trade, individual lily of the valley flowering stems are commonly called 'pips,' a specific term used by growers and florists when ordering or selling the plant commercially, distinct from the everyday 'sprig' language used in its French May Day tradition.