Impatiens are probably the best known shade annuals. Also check out Coleus with a variety of interesting colors, leaf sizes and shapes. Shade loving Wax and Tuberous Begonias are unique in size and flower. While the Spring and Fall are the best times, most container grown plants can be planted at any time during the growing season. Plant them with Peat Moss to help get the roots well established and water them well every week.
Roses are a beautiful attraction in any garden.
They require a full sun position with well drained, humus rich soil. To keep diseases at bay, water the ground and prune out the center of the bush to allow for good air circulation. Remember tender perennials require good mulching to survive the winter. Also make sure you plant it in a full sun position. Purple Wave is my favorite Petunia because of the many different ways you can use it in the garden.