The list could go on, but these are my favorite, easy to find plants I use over and over: -Annual Geranium - upright and trailing -Petunia and smaller Calibrachoa -Sweet Alyssum -Verbena -Chrysanthemum -Begonia -Impatiens -Sedum and Coleus -Zinnia -Pansy -Marigold -Snapdragon -Salvia -Bacopa -Lobelia