Native plants work well in smaller landscapes too. Liatris has grass-like foliage and spike flower heads. It gives a nice vertical accent to the design. Callirhoe, also called Poppy Mallow and Wine Cups, is an attractive groundcover for tough sites.
Rattlesnake Master has foliage similar to the blades of yuccas and clusters of white flowers in the summer. The rosy pink flowers of Spotted Joe Pye Weed will open soon. Gateway Joe Pye Weed has pinkish purple flowers atop dark red stems. Golden Baby Goldenrod and Fireworks Goldenrod have bright yellow flowers in the summer. Asters flower late summer into fall.
Have you tried preserving native flowers and grasses? Here's an article with some tips:
Flowers and Plants for Drying