1400s, the Franciscans have had a Crown Rosary of the Seven Joys of the Blessed Virgin Mary. In the 1400s and 1500s, the Carthusians promoted the idea of sacred mysteries associated with the rose symbol and rose gardens. Albrecht Dürer's painting The Feast of the Rosary (1506) depicts the Virgin Mary distributing garlands of roses to her worshippers. Roses symbolised the Houses of York and Lancaster in a conflict known as the Wars of the Roses. Roses are a favored subject in art and appear in portraits, illustrations, on stamps, as ornaments or as architectural elements. The Luxembourg-born Belgian artist and botanist Pierre-Joseph Redouté is known for his detailed watercolours of flowers, particularly roses. Henri Fantin-Latour was also a prolific painter of still life, particularly flowers including roses. The rose 'Fantin-Latour' was named after the artist. Other impressionists including Claude Monet, Paul Cézanne and Pierre-Auguste Renoir have paintings of roses among their works. In the 19th century, for example, artists associated the city of Trieste with a certain rare white rose, and this rose developed as the city's symbol. It was not until 2021 that the rose, which was believed to be extinct, was rediscovered there. In 1986 President Ronald Reagan signed legislation to make the rose the floral emblem of the United States. Pests and diseases Wild roses are host plants for a number of pests and diseases. Many of these affect other plants, including other genera of the Rosaceae. Cultivated roses are often subject to severe damage from insect, arachnid and fungal pests and diseases. In many cases they cannot be usefully grown without regular treatment to control these problems. See also ADR rose List of Award of Garden Merit roses List of rose cultivars named after people Rose (colour) Rose garden Rose Hall of Fame Rose show Rose trial grounds References External links World Federation of Rose Societies Catalan symbols Garden plants Medicinal plants National symbols of the United States Plants used in Ayurveda Plants used in traditional Chinese medicine Rosoideae