Which of the following aspects is directly related to landscape design?

Landscape design is a comprehensive process that encompasses various important considerations to create an aesthetically pleasing and functional space. Each aspect listed plays a crucial role in achieving effective landscape design.

Soil testing is vital because it provides information about soil pH, nutrient levels, and texture, which are essential for selecting appropriate plants that will thrive in the given conditions. Understanding the soil helps designers make informed decisions about amendments and plant choices.

Plant selection is directly at the core of landscape design. Selecting the right plants not only helps establish the visual and thematic elements of the landscape but also ensures that those plants are suited to the local climate, soil conditions, and intended maintenance levels.

Drainage management is also fundamental in landscape design. Proper drainage is crucial to prevent water accumulation, which can adversely affect plant health and overall landscape functionality. Effective drainage solutions need to be integrated into the design to prevent issues such as erosion, root rot, and waterlogging.

Since all of these elements—soil testing, plant selection, and drainage management—are intricately intertwined and directly influence the success of a landscape design, the correct answer encompasses the importance of considering all these aspects together.