The Texas State Flower. All pieces will be glazed in our white matte glaze, then Susan will hand paint the Bluebonnets onto the piece and she will sometimes add Indian Paintbrushes, (the small pink flowers which are also a local Texas flower), as an accent. The Cobalt Blue is usually used as a liner on the inside. The piece will then be fired to 2260*F, which permanently adheres the design to the piece, so it will never fade or come off.