Planting blue or purple flowering annuals is a good decision if you want to create striking color in your garden. Blue is a flower color that is not seen very often, but blue annuals create stunning borders, and container or window box flowers. Blue flowering annuals - like salvia, pansies, and the azure-blue flowers of the lobelia - look amazing when combined with yellow blooms.

Purple flowering annuals have several shades of rich lavenders and purples. A purple foliage annual plant with colorful leaves, like coleus, adds texture as well. It will provide continuity since blooms come and go throughout the summer. Other purple annual flowers are the morning glory, violas, and the lavender torenia that thrives in part shade. For a splendid flower bed full of color, blend various shades of purple annuals together.

With proper care, these showy, easy-to-grow blue and purple flowering annuals will add color to your garden design all season long.