A garden border provides a defined area for planting and a three-dimensional element for the yard. Some of the critical elements for a garden are lawns, paving, and borders. When you design a border for your yard you are defining something that will make a big impact on your space. As you spend time considering the shape that is will be seen as on the lawn, what type of character (rubber edging, stone retaining walls, etc) and the type of planting it will provide your yard really is being defined. You have to decide how you want borders to fit