What do you understand by "landscape design principles"?

Landscape design principles refer to the guidelines that inform the layout and functionality of plants and other elements within a landscape. These principles help designers create aesthetically pleasing, functional, and sustainable environments. They encompass aspects such as the arrangement of plants for visual harmony, the use of space, consideration of light, access to water, and the interaction between different plant species. Incorporating these principles ensures that the landscape will thrive and meet the needs of both people and the environment.

Other options focus on specific technical aspects that do not define the broader concept of landscape design principles. Technical methods for pest control and strategies for minimizing soil usage are practical aspects of landscape management, while rules for maximizing synthetic chemical use pertain more to agricultural practices than to design principles. Hence, these do not encapsulate the holistic and aesthetic approach that landscape design entails.