China creates flat 3D flower beds

Quick answer：

Flat 3D flower beds, also known as raised garden beds or elevated flower beds, are a modern innovation in gardening. They are designed to provide a flat, elevated surface for planting flowers, herbs, or vegetables, which can be more accessible and easier to maintain than traditional in-ground gardens. These beds are typically made of wood, plastic, or other durable materials and can be constructed in various shapes and sizes. They are popular for their ability to improve soil quality, reduce weed growth, and minimize the need for bending over while gardening.