The landscape design of this site dates back to the nineteenth century. It was remodeled in its upper part in the 1990s. Today, it reflects an image of the mountain and exudes such a natural atmosphere that exotic trees present (bald cypress, Douglas fir, redwoods, red oaks of America .. .) appear to belong to our flora.
The 30 000 bulbous plants scattered in the lawns offer a spring show at the end of March, extended by the flowering of rhododendrons (collection of 1500 plants in 110 varieties) then by that of perennials.