There are four Alpine botanical gardens in Valle d’Aosta, evidence of the awareness and input given by the Autonomous Regional Council of Valle d’Aosta to preserving the natural heritage and, in particular, in protecting the floristic heritage.

These gardens are Chanousia, at the Little St Bernard pass; Saussurea at the Mount Blanc Pavillon; Paradisia in Cogne; the garden of Castel Savoia in Gressoney-Saint-Jean.

These four Alpine botanical gardens offer the naturalist a useful research tool while offering the visitor the chance to discover the characteristic mountain environment and alpine flora.