In Clédat, the plant and biodiversity fair gives a rural heritage site a practical public role: nurserymen, local producers and artisans gather around plants, garden knowledge and everyday ecological culture. Its value is not spectacle but contact with the living materials of the region, from cultivated varieties to craft stands and producer tables, turning biodiversity into advice, objects, produce and public exchange. The rural setting makes biodiversity practical, linking plant advice, artisan stalls and local production with the everyday ways people care for gardens and land.