In July 2017, Johanna Rolland, President of Nantes Métropole, formally launched this project. It will be completed over 5 years, and is scheduled to be open to the public in Spring 2022 on the breathtaking site of the Chantenay Quarry along the banks of the Loire.
The planning phase began in 2017 and will end in 2019. The construction of the Heron Tree is a shared adventure. The creation of an endowment fund for the Heron Tree by Nantes Métropole has allowed for public and private partners to work together. It also opens the possibility for individuals to share in this artistic adventure.