Hazel Woodlands & Biodiversity 

Ireland is known for its rugged coastline, rolling green hills, and stunning natural beauty. While much attention is paid to the country’s majestic mountains and sparkling lakes, Ireland’s woodlands are also home to a vast array of biodiversity. One particularly interesting type of woodland found throughout the country is the hazel woodland – one of which we have onsite at Aillwee to explore. 


Hazel woodlands, as the name suggests, are woodlands that are dominated by the native hazel tree (Corylus avellana). These woodlands can be found throughout Ireland, particularly in the western and central parts of the country. They are often found in river valleys, on slopes, and in other areas with moist, well-drained soils. 


The hazel tree is an important component of Ireland’s natural ecosystem. It is a small, deciduous tree that typically grows to around 6 meters in height. It is known for its distinctive yellow catkins, which appear in early spring before the leaves emerge. The hazel tree is also an important food source for many of Ireland’s native wildlife species, including red squirrels, wood mice, and birds such as the bullfinch and the woodpecker. Take a trip around our Biodiversity Woodland Walk, especially now as we welcome the spring season to see the woodland come to life. Watch for the signs! 



Hazel woodlands are not only important for the wildlife they support, but they also play a vital role in maintaining the health of Ireland’s soils and waterways. The dense network of roots and vegetation in these woodlands helps to stabilize soils, prevent erosion, and improve water quality. Additionally, hazel woodlands provide important ecosystem services such as carbon sequestration, nutrient cycling, and pollination. 


One area where hazel woodlands are particularly significant is right where we are in the Burren region of County Clare. Hazel woodlands are an important component of the Burren’s ecosystem, providing a habitat for many of its native species. 


The hazel woodlands of the Burren are notable for their unusual appearance, as they often grow out of cracks in the limestone pavement. These woodlands are sometimes referred to as “climbing hazel,” as the trees appear to be climbing up the sides of the limestone cliffs. 


The hazel woodlands of the Burren are also significant from a cultural perspective. The hazel tree has long been an important symbol in Irish mythology and folklore, and hazel nuts were an important food source for early Irish people. The Burren is home to many ancient monuments and archaeological sites, including the famous Poulnabrone Dolmen (located less than a 10-minute drive from us) which dates back to the Neolithic period. Hazel woodlands would have been an important resource for the people who lived in the area during these ancient times.



Hazel woodlands are an important and unique ecosystem in Ireland. They support a vast array of native wildlife species, help to maintain the health of Ireland’s soils and waterways and provide important ecosystem services. Visit www.aillweeburrenexperience.ie now and get planning your trip to the Burren!