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. Plant pansies in a sunny spot in rich, well-drained soil. The plants can tolerate some dryness, but prefer to be just slightly moist at all times. Remove the faded flowers as they appear to encourage the production of additional blooms.