In landscape design, what is the primary function of plants in a landscape?

The primary function of plants in a landscape is to improve air quality and provide oxygen. Plants play a critical role in the process of photosynthesis, where they absorb carbon dioxide from the atmosphere and release oxygen, which is essential for the survival of most living organisms. This natural process significantly contributes to maintaining a balanced atmosphere and enhancing the overall health of the environment.

While providing shade, attracting animals, and blocking wind are important functions that plants serve in landscaping, these are secondary benefits that contribute to the overall ecological and aesthetic value of a landscape. The vital function of improving air quality and producing oxygen is foundational to sustaining life and is therefore considered a primary role of plants within any landscape design.