La Thomasia, mountain botanical garden

La Thomasia alpine garden at Les Plans-sur-Bex in the Vaudois Alps can be reached by car or public transport from Bex, with a little walk. It has also become very popular with mountain walking enthusiasts and nature lovers.

La Thomasia is a botanical garden dedicated to the knowledge and the protection of mountain plants. Situated at an altitude of 1,260 metres, it leans against the spectacular west face of Grand Muveran (3,051 m.) At the entrance of Vallon de Pont de Nant, the nature reserve La Thomasia was founded by the Thomas family in 1891. Its cultivation has been kept up ever since.

The botanical garden comprises nearly 3,000 mountain plants classified according to their geographical origin. Local Alpine flowers bloom next to plants from the Himalayas, the Rocky Mountains, the Caucasus, the Andes, Japan, New Zealand, the Moroccan Atlas and the Arctic regions.

La Thomasia, a scientific garden, is one of the two botanical gardens of the Cantonal Museum.

Practical information

Alpine Garden, PONT-DE-NANT
Every day from May to October
Masks are mandatory inside (greenhouses and exhibition) and social distances must be respected.
Thank you for your understanding. More information is available at Dogs are not allowed.

- Price: free admission
- Private guided tours for groups on request.


Jardin botanique alpin La Thomasia
1880 Les Plans-sur-Bex

Tel : +41 (0) 24 498 13 32

Opening hours

From Jul 1, 2022 to Oct 31, 2022
Monday - Sunday
10:00 - 18:00