|Some perennials you can plant include: Artemisia, Japanese Anemone, White mugwort, Seaside aster, Chimney bellflower, Common autumn crocus, Rose coreopsis, Joe-pye-weed, White plantainfily, Blackbud inula, Cattail gayfeather, Spike gayfeather, Henry lily. American turkscap lily, Bigleaf sea-lavender, Showy coneflower, Canada goldenrod and Stokesia. Chrysanthemums are also good bets for August bloom. Flowering shrubs that generally bloom in late June, July, or August are considered ?Late Flowering Shrubs?. These include Crape Myrtle, Snowhill Hydrangea, Black Haw Viburnum, Barberry, Vernal Witchhazel, Beautyberry-callicarpa, Butterfly Bush, Regal Privet, Summersweet-Clethra, Vitex, Althea-Rose of Sharon, Spirea Anthony Waterer, Summer Blooming Tamarisk, Snowberry, and Winged Euonymus. Hope these suggestions are helpful.