Garden walkways are both practical and decorative. Walkways allow you to wander among the flowers without wearing ruts in the dirt, and also provide an interesting design element to your garden. Paths invite people into your garden. They can be straight or curved, short or long and made of different materials. Walls add structure and style to gardens. You can use a wall to mark the boundaries of a garden, focus on a flower border or contain erosion on a slope.