I recently admired a beautifully planted curbside garden in full sun with a lovely color palette.
Caryopteris can be grown singly, in multiples, or as a long hedge for maximum impact.
I have recently become besotted with chartreuse foliage, even though, or perhaps because, it is a color that I have never been able to wear.
Natives with long tap roots like the bright orange butterfly weed are completely unfazed by the heat, as are shrubs like crepe myrtle and caryopteris.
Try to plant shrubs to provide a succession of bloom from spring into fall.