Hawthorn Tree Guide: Flowers, Berries, Thorns & Hedges

At woodland edges, on river valley slopes, and in old hedgerows, thorny shrubs burst into flat clusters of white flowers in late spring, while in autumn their branches are colored with dark red berries that feed thrushes and waxwings through the winter. These are hawthorns—members of the rose family, closely related to apples and rowans. While they usually grow as shrubs, they can mature into small trees, earning them a place in our tree guide. In this guide, you will learn how to identify a hawthorn, distinguish between common species, and discover how hawthorn preparations are officially evaluated.

Scientific Name	Crataegus (genus), common hawthorn – Crataegus monogyna
Family	Rosaceae (rose family), Amygdaloideae subfamily
Species	Hundreds worldwide, with many native and introduced species
Height	Usually 10–16 ft (3–5 m) shrubs; common hawthorn up to 33 ft (10 m) or more
Blooms	Late spring to early summer
Fruits	Red, mealy pomes (berries), ripening in late autumn
Habitat	River valley slopes, woodland edges, scrublands, hedges
Distinctive Feature	Branches armed with sharp 0.4–0.6-inch (1–1.5 cm) thorns

How to Identify Hawthorn

Hawthorns are small, typically 10–16 ft (3–5 m) tall shrubs or small trees with a dense canopy, hard wood, and stout thorns. Several species grow wild across Europe and North America, while dozens of introduced varieties are cultivated in gardens and parks. The common hawthorn (Crataegus monogyna) is widespread, thriving on river valley slopes and woodland edges, reaching up to 33 feet (10 m), sometimes up to 46 feet (14 m) tall. They are generally cold-hardy to USDA zones 4–7.

Leaves

Common hawthorn leaves are small, 0.8–1.6 inches (2–4 cm) long, dark green, glossy, and deeply divided into 3 to 7 spreading lobes. They are arranged alternately, often in small clusters on short shoots. The midland hawthorn has similar but more shallowly lobed leaves. In autumn, the foliage turns yellow or reddish.

Flowers

Hawthorns bloom in late spring to early summer. The flowers are white, sometimes pinkish, featuring five petals and numerous stamens with pink anthers, gathered in flat corymbs (flower clusters) of 5 to 25 blossoms. The common hawthorn flower has a single stigma (pistil), which gives it its botanical name monogyna. The scent is distinctive: hawthorn flowers contain trimethylamine, which many find unpleasant. They are pollinated by bees, midges, and other insects.

Fruits

The fruit is a small, 0.4-inch (1 cm) long, oval, dark red pome (often called a berry) with dry, mealy flesh. The common hawthorn fruit contains just one seed, while other species can have up to five. The berries ripen in late autumn or early winter, growing in clusters of two, three, or more, providing crucial winter food for thrushes, waxwings, bullfinches, and other overwintering birds. You can read more about bird-dispersed seeds in our tree seed and fruit guide.

Thorns and Bark

Younger hawthorn branches are armed with straight, sharp 0.4–0.6-inch (1–1.5 cm) thorns that effectively protect the plant from browsing animals. The bark is brownish-gray; on older trunks, it cracks into small plates with orange vertical fissures. Old trunks are often twisted and fluted.

Hawthorn, Rowan, or Bird Cherry?

Feature	Common Hawthorn	Rowan (Mountain Ash)	Bird Cherry
Leaves	small, deeply lobed	pinnately compound	elliptical, finely serrated
Flower clusters	flat corymbs, late spring	broad flat corymbs, late spring	drooping racemes, mid-spring
Fruits	dark red, oval, mealy	orange-red, round, juicy	black drupes
Thorns	present	absent	absent

Read more about similar trees in the rowan (mountain ash) and bird cherry guides.

Common Hawthorn Species

• Common hawthorn (C. monogyna) – widespread; deeply lobed leaves, one stigma per flower, one seed per fruit.
• Midland hawthorn (C. laevigata) – shallower leaf lobes, 2–3 stigmas per flower; hybridizes easily with the common hawthorn.
• Other regional species – such as the large-sepalled hawthorn (C. rhipidophylla) in Europe, and various native North American species like the Washington hawthorn (C. phaenopyrum).

Ornamental hawthorns with pink or double flowers are also widely grown in gardens. Because species hybridize so readily, accurately identifying a specific hawthorn can sometimes challenge even botanists.

Hawthorn Hedges

The common hawthorn is one of the traditional hedging plants in Europe, heavily planted for agricultural hedgerows. A densely branched and thorny hedge, with a little maintenance, becomes almost impenetrable to livestock and people. Hawthorn tolerates pruning well, and birds gladly nest in its dense, thorny canopy. A blooming hedge feeds bees, while the autumn berries sustain wintering birds.

Hawthorns are long-lived: in France, near the church of Saint-Mars-sur-la-Futaie, grows a hawthorn considered one of the country's oldest trees—in 2009, it stood 30 feet (9 m) tall with a trunk circumference of 8.7 feet (2.65 m). England is famous for the Glastonbury Thorn, which, according to legend, flowered twice a year.

Medicinal and Culinary Uses

Hawthorn leaves and flowers are officially recognized as herbal material. The European Medicines Agency's Committee on Herbal Medicinal Products, based on long-standing use, classifies hawthorn leaf and flower preparations as traditional herbal medicines. Adults can use them to relieve temporary nervous cardiac complaints, such as palpitations—only after a doctor has ruled out serious conditions. Adolescents over 12 and adults can also use them to relieve mild symptoms of mental stress and to aid sleep. The Agency notes that while clinical trials are limited, conclusions are based on long-term safe use. If symptoms persist for more than two weeks or worsen, a doctor should be consulted. No side effects were reported during the Agency's assessment, and precautions are detailed in the official monograph.

Hawthorn berries are edible: due to their dry flesh, they are less prized in everyday cooking, but they make excellent jellies and syrups. The young leaves and flower petals are also edible. The genus's Latin name, Crataegus, is derived from a Greek word meaning strength and robustness—a nod to its hard wood and thorns. You can find other early-blooming trees of the rose family in the rowan (mountain ash) and bird cherry guides.