Paulownia tomentosa
The arboretum was created in 1966 beside the Isère by Robert Ruffier-Lanche, head gardener of the Jardin botanique alpin du Lautaret. After some years of neglect, its restoration began in 1999. Today the arboretum contains over 200 species of trees and shrubs from temperate environments around the world, including particularly fine specimens of "Davidia involucrata", "Paulownia tomentosa var tsinlingensis", and "Quercus rugosa".