Lawn is a "popular plant landscape" in recent years, commonly known as turf in European and American countries, and the lawn of exquisite people. Japan is called Zhili and Tsao Zhi. Lawn is an artificial grassland, which is densely planted and trimmed with short perennial herbs. /kloc-in the middle of the 0/8th century, a large area of lawns appeared in British natural landscape gardens. Lawns also appear in modern gardens in China. It is usually set in front of houses, squares, open spaces and around buildings for viewing, entertainment or sports. Lawns are divided into leisure lawns, ornamental lawns, playground lawns, traffic safety lawns and soil and water conservation slope protection lawns. Herbs used in urban and garden lawns mainly include Zoysia japonica, Pennisetum, Bermuda grass, carpet grass, pure leaf grass, centipede grass, ryegrass, Kentucky bluegrass, millet and so on.

The difference between ground cover plants and lawn plants: Lawn plants can only show monotonous green or yellowish brown, while ground cover plants include red, blue, purple, silver, copper and gold in addition to green, which can show colorful hierarchical structure through reasonable configuration. The characteristics of ground cover plants are the same as lawn plants. Ground cover plants can cover the ground and conserve water, but ground cover plants have many characteristics that lawn plants can't do: 1) Ground cover plants are small in size, diverse and rich in variety. The branches, leaves, flowers and fruits of ground cover plants are rich in variety, colorful and changeable in four seasons, creating a variety of ecological landscapes. 2) Ground cover plants have strong adaptability and fast growth speed, and can grow under different environmental conditions, such as shading, sunshine, dryness and wetness, etc., which makes up for the shortcomings of slow growth of trees and large gaps in the lower layer, and can receive better ornamental effects in a short time. 3) Woody plants in ground cover plants change in height and level, are easy to dry and are modified into patterns. 4) Simple propagation, planting once, and benefiting for many years. In the later maintenance management, the lawn of single ground cover plants has fewer pests and diseases, is not easy to breed weeds, and the maintenance management is extensive, so it does not need frequent pruning and careful care, which reduces the energy spent on manual maintenance.