Pansies are short-lived perennials that are grown as annuals. Pansies are available in an amazing range of vibrant colors and bicolors, with petals that are often striped or blotched and even give off a waft of perfume. Pansies thrive in full sun, part shade, in a pot or even in a hanging basket with aged compost or animal manure. Make sure the soil is well-drained and fertile. Pick spent blooms to encourage new buds.