Krössing performed with Smetana's group of artists at the Nové České Divadlo (New Czech Theatre) up until 1881 when the National Theatre opened. He continued to appear at that house in operas, operettas, plays, and even the occasional ballet up until 1914. While there he portrayed over 300 roles, both large and small, in well over 4,000 performances. He was also active as a stage director for plays and operas at the theatre from 1890 until his retirement.
