Jardin alpin La Jaÿsinia is a garden in Samoëns, in the Haute-Savoie region of France. It is part of the French National History Museum. The garden is located in the very center of the city, on a steep slope. At the top are the ruins of the castle of Montanier, destroyed in 1476. The garden, initially private, was donated to the municipality of Samoëns in 1906. It covers an area of approximately 3.5 hectares. It brings together the representation of the flora of five different continents and includes 8000 plants, divided into 4500 species and varieties, in particular plants of mountains or cold countries of the five continents. In the garden it is also possible to see small waterfalls, ponds, high forests and paths. Today, the garden is also equipped with a laboratory, a study center for numerous researches. Entrance to the garden is free.