Below is a Blooming Chart of many of my perennials.  Each column represents a week of the month May through September.  The perennials here are listed in the order that blooms first appear.  The chart should help you to establish a garden with color throughout the growing season.  Please remember that the plants in your garden will bloom based on your location, elevation, and amount of sun and/or shade in your yard, but the chart should help you to determine a blooming order.  (X=Full Bloom    P=Partial Bloom    R=Rebloom)