After the Soviet expulsion of the Nazis from Poland, Rowicki revived the defunct Polish National Radio Symphony Orchestra, which had disbanded during the war, in Katowice. Between 1950 and 1955, and again between 1958 and 1977, Rowicki was the director of the Warsaw Philharmonic, leading the orchestra on multiple foreign tours and receiving several decorations from the Polish government. He later moved to West Germany and directed the Bamberg Symphony from 1983 to 1985.
After the Soviet expulsion of the Nazis from Poland, Rowicki reactivated the dormant Polish National Radio Symphony Orchestra, which had ceased operations during the war, in Katowice. Between 1950 and 1955, and again between 1958 and 1977, Rowicki served as the director of the Warsaw Philharmonic, guiding the orchestra on numerous international tours and receiving various honors from the Polish government. He later relocated to West Germany and directed the Bamberg Symphony from 1983 to 1985.