Open the Advanced Search

Common Hazel

Corylus avellana

Please keep in mind that it is illegal to uproot a plant without the landowner's consent and care should be taken at all times not to damage wild plants. Wild plants should never be picked for pleasure and some plants are protected by law.
For more information please download the BSBI Code of Conduct PDF document.


Plant Profile

Flowering Months:
Corylaceae (Hazel)
Also in this family:
Deciduous tree
Life Cycle:
Maximum Size:
3.7 metres tall
Gardens, grassland, hedgerows, scrub, woodland.

Yellow, no petals
Catkins of this tree are sometimes referred as 'lambstail' catkins. The male lemon-yellow catkins hang loosely, while the female catkins are much smaller and erect.
A white nut, enclosed in a thick, jagged, toothed, lobed, green husk. Sometimes the fruit are called cobnuts, or filberts.
A deciduous tree or shrub. Roundish leaves, soft textured and up to 12cm in size, often tinged purple. Double-serrated leaf margins. The leaves turn yellow in autumn.
Other Names:
Cobnut, European Filbert, European Hazel, European Hazelnut.
Frequency (UK):

Similar Species

Other Information


Corylus avellana, also known as the common hazel or European hazelnut, is a species of deciduous tree or large shrub that is native to Europe and parts of Asia. Hazel is known for its characteristic round or oval-shaped nuts that are encased in a green, leafy husk. The tree is also known for its yellow catkins that appear in the early spring before the leaves. Hazelnuts are edible and commonly used in cooking and baking, as well as in the production of hazelnut oil and chocolate. The tree is also commonly used for hedgerows, windbreaks, and as an ornamental plant.


The Common Hazel, or Corylus avellana, is a deciduous shrub that is native to Europe and western Asia. It is also known as the European Hazel or simply the Hazel. It is a popular ornamental plant, often used in hedgerows or as a garden plant, but it also has a long history of human use, with its nuts and wood being used for a wide range of purposes.

Appearance and Habitat

The Common Hazel typically grows to a height of around 12 feet (3.7 meters), although it can grow taller in favorable conditions. It has a spreading habit and a dense canopy of leaves that turn yellow in the autumn. The leaves are oval-shaped and have serrated edges. The plant produces catkins in early spring, which are the male flowers. The female flowers are small and inconspicuous, and they develop into nuts that are encased in a leafy, bract-like structure called an involucre.

The Common Hazel is a hardy plant that can grow in a wide range of habitats, from woodlands to hedgerows and even in urban areas. It prefers well-drained soils that are rich in nutrients, and it can tolerate both sun and shade.


The Common Hazel has a long history of human use, dating back to prehistoric times. The nuts of the plant were an important food source for many ancient cultures, and they remain a popular snack food today. The nuts can be eaten raw or roasted, and they are also used in confectionery and baking.

In addition to its culinary uses, the Common Hazel has a range of other uses. The wood of the plant is hard and strong, and it is often used in the construction of furniture and tool handles. The plant also has medicinal properties, and it has been used to treat a range of ailments, including coughs, colds, and fevers.

Ecological Importance

The Common Hazel is an important plant in many ecosystems, providing food and shelter for a range of wildlife. The nuts are an important food source for small mammals, such as squirrels and mice, as well as for birds, such as jays and woodpeckers. The plant's dense canopy provides shelter for many species of birds and insects, and it also helps to prevent soil erosion.


Although the Common Hazel is not considered to be endangered, it is still important to protect the plant and its habitat. One way to do this is to encourage the planting of hazel trees in gardens and public spaces. This can help to increase the plant's range and provide additional habitat for wildlife.

In conclusion, the Common Hazel is a versatile and important plant that has been used by humans for thousands of years. Its nuts are a popular snack food, its wood is prized for its strength and durability, and it provides food and shelter for a range of wildlife. By protecting the Common Hazel and its habitat, we can ensure that future generations will be able to enjoy its many benefits.

More Information about the Common Hazel

In addition to its many uses, the Common Hazel also has cultural and folklore significance. In many ancient cultures, the plant was seen as a symbol of fertility, and it was often associated with goddesses of the harvest and fertility. In some cultures, the nuts were used in divination and fortune-telling.

The Common Hazel has also been used in traditional medicine for centuries. The leaves, bark, and nuts of the plant have been used to treat a range of ailments, including coughs, colds, and sore throats. The nuts have also been used as a laxative and to promote the production of breast milk in nursing mothers.

The plant's natural range includes much of Europe and western Asia, and it has been introduced to other parts of the world, including North America and Australia. In some areas, it is considered an invasive species, as it can form dense thickets that crowd out other native vegetation.

One interesting fact about the Common Hazel is that it has a unique method of pollination. The male catkins produce large quantities of pollen, which is then carried by the wind to the female flowers. However, the female flowers are often not receptive to the pollen until several days after it has been produced. This delay helps to ensure that the plant is not pollinated by its own pollen, which would result in inbreeding and reduced genetic diversity.

The Common Hazel is also an important plant in the production of hazelnuts, which are used in a wide range of food products, from chocolate to spreads and snacks. Hazelnuts are highly nutritious, containing high levels of protein, fiber, and healthy fats. In addition to their culinary uses, hazelnuts are also used in cosmetic products and as a source of oil for cooking and other applications.

The Common Hazel has been cultivated for thousands of years, and many different cultivars and hybrids have been developed for their nuts, wood, and ornamental value. Some of the most popular cultivars include 'Cosford', 'Kent Cob', and 'Webb's Prize Cob', all of which produce large, high-quality nuts.

In conclusion, the Common Hazel is a fascinating and important plant with a long and varied history of use. From its role in ancient cultures to its modern-day uses in food, medicine, and cosmetics, the plant continues to provide many benefits to humans and the natural world. By understanding and appreciating the value of the Common Hazel, we can work to protect and conserve this important plant for future generations.

Facts about the Common Hazel


  • The Common Hazel, also known as the European Hazel, is a deciduous shrub native to Europe and western Asia.
  • It has a range of uses, including as a food source (for its nuts), for construction (due to the strength of its wood), and in traditional medicine.
  • The plant is an important habitat for a range of wildlife, providing food and shelter for small mammals and birds.
  • The Common Hazel has cultural and folklore significance, with the nuts being used in divination and fortune-telling.
  • The plant has a unique method of pollination, which helps to ensure genetic diversity.
  • Hazelnuts, which are produced by the Common Hazel, are highly nutritious and used in a wide range of food products.
  • Many different cultivars and hybrids of the Common Hazel have been developed for their nuts, wood, and ornamental value.

Summary: The Common Hazel is a versatile and important plant native to Europe and western Asia. It has a long history of use by humans, with its nuts, wood, and medicinal properties all being valued. The plant is also an important habitat for wildlife and has cultural significance. Hazelnuts, produced by the plant, are highly nutritious and widely used in food products. The plant has been cultivated in many different forms for its nuts, wood, and ornamental value.


Video 1: Hazel trees in flower filmed in Adlington, Lancashire on the 21st January 2023.


Video 2: Hazel trees in fruit filmed in Adlington, Lancashire on the 10th July 2022.


Please remember to Like and Subscribe to the WildFlowerWeb YouTube channel at

Distribution Map

Reproduced by kind permission of the BSBI.

Click to open an Interactive Map