Giant’s Grove

Largest forest grove of giant redwoods outside California

Lord Rosse, Birr Castle and Crann Trees plan to create the largest forest grove of giant redwoods outside California

On the occasion of Lord Rosse’s 80th birthday, Birr Castle and Crann Trees for Ireland are delighted to announce ambitious plans to create, through public participation, the largest grove of giant redwoods outside of California, within the historic grounds of Birr Castle Gardens.

Giants Grove will be a legacy project for Lord Rosse and the Birr Castle Estate have allocated the land to the project. Lord Rosse said “This project is very close to my heart. Our grandchildren, their grandchildren, Birr, Ireland and the world will benefit from this magnificent forest. These will be the biggest trees in Ireland and the largest collection outside of California, fittingly here in Birr in a place which has the biggest treehouse in Ireland and also had the largest telescope in the world for over 70 years. We would like to offer everyone the opportunity to be part of a Redwood Forest here in Ireland. By investing in this project with us, the sponsors will have the opportunity to make a personal impact on Ireland’s environment and world conservation. Even if your family has long left Ireland, by investing in the Giants Grove you can ensure their family roots remain in Ireland for generations to come.”

Giants Grove will endure for the next 1000 years or more. Giants Grove gives the opportunity to individuals at home or abroad to donate towards having a share in this magnificent redwood forest in the heart of the Midlands. Giants Grove is designed to signify the giant place that our sons and daughters have in our hearts. The return to Ireland of redwoods, which were native here before the geologically recent ice age, will also be a symbol of Ireland’s global concern for conservation, most particularly at the present time where climate change represents a threat to the long term survival of redwoods in California.

For more information on how to be part of this wonderful project simply visit and or email
*Please note this project is not managed or run by Birr Castle Gardens and Science Centre.