It is open daily except Monday in the warmer months; an admission fee is charged.
The park was created between 1899-1913 on the grounds of Château Colbert by noted Parisian architect Alexandre Marcel (1860-1928), designer of the Cambodia pavilion at the Exposition Universelle (1900), for the château's industrialist owner.
Having married the owner's daughter, Marcel often dwelt in the château as he oversaw its landscaping.
Restoration began in 1987, based upon photographs and memories, and by 2004 the garden was named a "Jardin Remarquable" by the ministry of culture.
It contains about 300 plant species, with water features, a bridge, and a pagoda, as well as azaleas, camellias, rhododendrons, and Japanese maples.