Who can resist the charming faces of pansy? These happy-go-lucky annual flowers almost seem to smile as you walk by. Pansies comes in a myriad of colors and patterns that look their best in the spring or fall when the weather is cool. In fact, in milder climates, pansies will bloom all winter long. Pansies excel in beds and borders or packed into window boxes, hanging baskets, and containers. This foolproof, little sun-lover grows 6 to 9 inches tall and will bloom its head of until hot summer weather brings the flower show to a close. Colors include yellow, red, mahogany, blue, purple, mauve, pink, orange, white, and even black. Pansies also bear either clear or blotched flowers.