Garden walls are a simple and affordable way to add rustic elegance to your garden while helping to separate and define outdoor space. The garden wall designs are vary. In these garden wall designs, walls can be made from brick, field stone, quarried rock, masonry blocks or concrete. Brick or concrete walls give a formal feel to garden while filed stone and quarried stones can have an informal or rustic look. When picking a type of garden wall, one option is to match and brick or stone work that is on the house. It gives the property a cohesive visual appearance with one element blending in smoothly with the other.