Echinaceas must be the ultimate prairie perennials, with daisy-like flowers in a range of colours.
They’re easy enough to grow, too. Plant them in a south- or west-facing spot in any rich, well-drained soil for blooms that should last from mid-summer to mid-autumn. Pollinators and birds alike will benefit from the pollen, nectar and seedheads that the flowers provide.
Thanks in part to the resurgence of prairie-style planting there are new echinacea varieties being produced all the time
Echinacea - variety