Outdoor three-dimensional flower bed effect

Quick answer：

Outdoor three-dimensional flower beds are landscaping features designed to create a sense of depth and dimensionality in garden spaces. They often consist of raised beds or structures that house plants at various levels, creating visual interest and a more engaging garden environment. These flower beds can be used to display a variety of plants, including shrubs, flowers, and herbs, and can be crafted in various shapes and sizes to suit different garden styles and spaces.