Use a simple color scheme that relates to other landscape elements and the site. Employ solid-color flowers of several hues in gardens. Bicolored flowers are more difficult to work with. Allow adjacent areas of color to intermingle along the edges for a softer look. Plant light colors in shade gardens.
Dark colors are harder to see.
Select flowers in a harmonious mixture of cool colors for a soothing, restful feeling. Create the illusion of more space in a small garden by planting warm colors in front and cool colors in back. Lighten up dim areas with white and pastels. Use white in deeply shaded gardens. Use whites and pastels to make your garden glow at dusk.