Ganna Walska (born Hanna Puacz on June 26, 1887 – March 2, 1984) was a Polish opera singer and garden enthusiast who created the Lotusland botanical gardens at her mansion in Montecito, California. She was married six times, four times to very wealthy husbands. The lavish promotion of her lackluster opera career by her fourth husband, Harold Fowler McCormick, inspired aspects of the screenplay for Citizen Kane.