Real scene photo of ground-level planting pool

Quick answer：

Ground-level planting pools are designed to be flush with the ground, maximizing the use of space and allowing for closer proximity to the plants. They are often used in urban gardening, rooftop gardens, and in areas where vertical space is limited. These pools can be made from various materials such as concrete, wood, or plastic, and are used to grow a variety of plants including vegetables, herbs, and flowers. They offer advantages such as easier maintenance, better water distribution, and more accessibility to plants.