Sunken stone is also easier and safer to walk on. Such flat stones can be used to produce a rough textured patio or set of steps. If you are able to get enough flat stone and rock, you may even be able to construct walls with the available materials. A good looking stone wall is a work of art and can add greatly to the appearance of a landscape or garden. They add height to an area and allow for the development of a planting space on top.
Walls can also be very functional by serving to hold soil or stabilized a slope on the property.
Natural rock ledges that crop out of the ground can be used to advantage. When the soil it too shallow in these areas mowing is a problem. You may be able to expose more of the rock to create small planting pockets of soil. If your present stone is set too low into the ground, the strength of the garden may be increased by adding more rock layers to the existing materials. This should give some additional height to the final design.