In 1955, Adickes was commissioned to paint a large historical mural of the city for the then-new Houston Club. That fall, he was hired to teach in the Art Department of the University of Texas at Austin.
In 1983, after being a fulltime painter and art instructor for more than two decades, Adickes was commissioned to make his first monumental sculpture. He created the Virtuoso, a 36-foot steel and concrete statue of a string trio. It is displayed in Houston. In 1986, he created Cornet as a stage prop for the New Orleans World Fair. In 1994, he created A Tribute to Courage in memory of Houston’s namesake, Sam Houston. In 2004, he created 43 large busts of American presidents at Presidents Park, Virginia. In 2006, he erected 60-foot statue of Stephen F. Austin in Brazoria County, Texas. In 2012, he turned his old high school in Huntsville into the Adickes Art Foundation Museum.