Le Plantier de Costebelle, Neo-Palladian villa in Hyères, France

Le Plantier de Costebelle is a Palladian-style villa on the eastern slope of Mont des Oiseaux in Hyères, overlooking the harbor and the offshore islands. The property includes the main house and a botanical garden on the surrounding grounds.

Baroness Hortense Pauline Husson de Prailly bought a plot from Ernest Desclozeaux in 1857 and had a neo-Palladian villa built there, naming it Villa des Palmiers. In 1896 the novelist and Académie française member Paul Bourget (1852–1935), author of Le Disciple, bought the property and gave it its current name; he received André Gide, Henry James, Edith Wharton and Marshal Joseph Joffre there until his death. The estate then passed to his heir, General Marius Daille.

The house became a meeting place for writers and artists who gathered here to exchange ideas and find inspiration. Visitors can still see the rooms where these gatherings took place.

The house is a private residence opened to the public only under certain conditions, so visits depend on prior arrangement rather than a fixed daily opening. The estate sits on the eastern slope of Mont des Oiseaux above the Costebelle hills, reached by road from Hyères; the grounds are on sloping terrain. The botanical park has held the Remarkable Garden label since November 2009.

Enameled plaques placed throughout the botanical garden tell stories about the people who visited and lived here. These small markers are scattered across the grounds and can be read as you walk through the garden.