What factor greatly affects the practicality of landscape design?

The practicality of landscape design is significantly influenced by site grading. Site grading refers to the process of altering the slope and elevation of the land to achieve various goals such as drainage, accessibility, and the overall usability of the site. Proper grading can prevent issues related to water accumulation, erosion, and other drainage problems that could compromise the integrity of plants and structures within the landscape.

In landscape architecture, effective grading is essential for ensuring that spaces are both functional and aesthetically pleasing. It impacts not just the visual appeal but also how people interact with the space, including movement patterns and accessibility for both people and maintenance equipment. Additionally, the right grading can support a healthy growing environment for plants by directing water away from their roots and towards areas where it can be beneficial.

While color selection, soil type, and pest control are important considerations in landscape design, they do not have the same foundational impact on how a space can be effectively utilized and how it performs in relation to water management and topography. Thus, site grading is a crucial factor in achieving a practical landscape design.