What does "seasonal color" refer to in landscaping?

"Seasonal color" in landscaping specifically refers to the intentional selection and use of plants that produce blooms or exhibit vibrant foliage at varying times throughout the year. This creates a dynamic and visually engaging environment, as different plants contribute color and interest in different seasons. By incorporating a variety of flowering plants or those with colorful leaves, landscapers can ensure that the landscape remains lively and appealing regardless of the time of year.

The other options do not accurately capture the essence of "seasonal color." For instance, the use of evergreen plants all year does not provide seasonal variation in floral displays, as evergreens maintain the same appearance throughout the seasons. Similarly, while fall foliage is indeed colorful, it is limited to autumn and does not encompass the broader concept of seasonal color that includes spring and summer blooms. Lastly, the color of lawn grass, while important to the overall landscape, focuses solely on a single type of plant and does not reflect the diverse array of colors introduced by flowering plants throughout different seasons.