How do temperature, precipitation, humidity, and wind affect landscape design?

In garden and landscape design, climatic factors are fundamental to how spaces are envisioned, maintained, and experienced. Designers must account for these variables to ensure the longevity and functionality of the landscape:

• Temperature: This dictates the selection of plant species, as seen in the use of plant hardiness zones, which categorize regions by their average minimum winter temperatures. Temperature ranges also influence the need for design features like shade or shelter.
• Precipitation: The amount and pattern of rainfall—or snowfall—determine the necessity for irrigation or drainage systems. Designers must plan for water management to prevent soil erosion or waterlogging, ensuring the landscape remains viable throughout the year.
• Humidity: Atmospheric humidity affects evapotranspiration rates and water-use efficiency. It also influences the aesthetic quality of a space, such as the clarity of light in arid regions versus the soft, mysterious atmosphere of foggy landscapes.
• Wind: Air movement impacts both comfort and plant health. Designers often incorporate windbreaks—composed of trees, shrubs, or structures—to protect against wind stress, reduce heating and cooling costs for nearby buildings, and mitigate moisture loss.

Ultimately, these factors shape the design approach, from the creation of Mediterranean-style courtyards to provide relief from heat, to the use of specific plantings to manage seasonal changes in light and temperature.123