Layering color in landscaping involves selecting plant varieties that bloom or display foliage in successive seasons for continuous interest. Combine complementary colors and textures, starting with bold, bright plants near entrances to catch the eye and softer tones farther away. Use accents like colorful containers or garden art to punctuate beds. Balance warm and cool hues to create harmony, and repeat color themes to unify spaces. Incorporate evergreen plants with contrasting leaves to maintain visual interest between blooms. Thoughtful color layering enriches curb appeal and emotional impact, creating a welcoming outdoor environment.