A wall forming system utilizing flowable construction materials, such as concrete, to construct walls. The wall forming system comprises a wall forming assembly and a method of using the wall forming assembly to form a wall having an exterior surface. The wall forming assembly comprises an exterior first panel having a plurality of openings therethrough and a second panel. The first and second panels are spaced apart so that a cavity is formed therebetween for receiving the flowable construction material. The flowable construction material will flow through the openings in the exterior panel and extend beyond an external surface of the exterior panel. The flowable construction material that extends beyond the external surface can be shaped to form various surface designs. The exterior panel and the flowable construction material become a substantially monolithic structure when the flowable construction material is set.