To avoid this midsummer malady, keep the color coming. Jan McNeilan, consumer horticulture agent with the Oregon State University Extension Service recommends the following summer and fall blooming perennial flowers for sunny areas. There are low growing and taller varieties. Excellent for drying.
Butterflies love it.
A relative of the sunflower, with bright yellow flowers. Clumps of coneflowers grow from four to five feet high and lower from late summer into early autumn. It makes excellent cut flowers. Easy to sow from seed, they often self-sow. Blooms summer into fall.