In autumn, many flowers have completed their bloom cycle, leaving yards looking dry and drab, but other flower species are just waiting in the wings to put on a fantastic fall finale. This is the time to add a pop of color to flowerbeds or porch pots with cool-season bloomers. Mums are always a favorite, available now in a rainbow of shades from bright yellow to deep burgundy. Other bright fall bloomers include asters, flowering kale, celosia, goldenrod, and sumac.