CARLONE CONTEMPORARY: herman de vries — 108 pounds of lavender flowers is listed 18 March–13 September 2026 on the official Belvedere page (datetime 2026-03-18 / 2026-09-13). Official copy frames the Dutch artist’s 1991 Conceptual work as an elliptical field of fragrant purple flowers in the Carlone Hall of the Upper Belvedere, under Carlo Innocenzo Carlone’s Baroque ceiling frescoes. Upper Belvedere hours Monday–Sunday 9 am–7 pm; Prinz-Eugen-Straße 27, 1030 Vienna. Day ticket €23. Last day is Sunday.