That is the rationnal thinking, but above all there is the simple pleasure to create with the help of nature in its greatest diversity and to feel like part of it. There are many microclimatic conditions due to the different slopes and exposures to sun and winds. In the Arboretum, rocks are mainly limestone, but not exclusively.
Investigations are still under way.
2.6 Average number of days min. 62.8 Average number of days min. 9.8 Average number of days min. A plantation of Abies grandis died when 30 years old. A second hundred is waiting in the nursery.