Peonies are large flowers, and very popular as high-end blooms. They are seasonal, and are typically available (depending on growing seasons world wide) from December through January and April through July. Sometimes seasons can stretch a little longer, and sometimes they can be shorter. Colorado has locally grown peonies in the spring, sometimes through June. Peonies come in many shades... white, light blush pink, medium pink, hot pink, dark red, coral, peach, and SOMETIMES a pale yellow.