Picture of a low wall in an outdoor garden

Quick answer：

An outdoor garden with a low wall can serve various purposes such as defining boundaries, providing privacy, or adding aesthetic value. Low walls are often constructed from materials like stone, brick, or wood. They can be decorative, functional, or a combination of both. In garden design, low walls can be used to create seating areas, terraces, or to display plants and garden ornaments. They can also be a part of a larger landscape plan that includes pathways, pools, or water features.