The Common Hazel is a fruiting tree, giving off what is known as the hazelnut. It is botanically known as Corylus avellana. In width and height it typically grows to about 5m and fruits over the summer, allowing for the picking of its fruit in late summer and in autumn. It is self-fertile, using both male and female flowers to pollinate by wind.
It is a deciduous tree that is hardy, being able to grow in sand, loam and clay soils regardless if they are acidic, neutral or alkaline but does prefer moist soils. The common hazel can tolerate strong wind yet has a dislike for acidic soils and a lack of tolerance to frost.