Annual flowers can provide landscaped areas with more seasonal variety and colorful accents than most other plants. The key to success with annuals is to plant only the area that can be adequately cared for. Remember, color can have more impact on the landscape than any other design element. However, nothing has a more negative impact than a poorly maintained color area.
HTML markup and graphic design by Dan Lineberger and Heather Bludau.
http://aggie-horticulture.tamu.edu/extension/homelandscape/flowers/index.html