Agastache x 'Purple Haze'. Shrub-like evergreen with flat-topped head on standard. Monarda didyma x fistulosa 'Gardenview Scarlet'. Interesting dark purple stems and yellow flowers that bloom just above the foliage in late summer. Prairie grasses and meadows can be no-mow and restrict traffic over the septic fields, which are good things, so people think they are desirable.
One more step
Scaly buckler fern, Remote Wood Fern. Helleborus x hybridus 'Pine Knot Best Bicolours'. Medium tree with white fluffy flowers, to 12m 14cm Eucalyptus sideroxylon rosea Trees Pink Flowered Ironbark. A good choice for planting over tree roots. Pure white bell-shaped flowers in June. Sunset Hyssop, Licorice Mint. Boxleaf Euonymus, Golden Euonymus.
Bay State Perennial Farm - Perennials K & L
Gaura lindheimeri 'So White'. Photinia x faseri Photinia Evergreen branched shrub with bronzed-red new growth. Broadleaf evergreen shrub with spiny blue-green leaves, fragrant yellow flowers, and beautiful blue fruit. Campanula lactiflora 'Loddon Anna'. New foliage appears deep burgundy, grows 90cm x 90cm. Calycanthus floridus Common Sweetshrub Flowers don't look like much but are famous for their scent.
In summer, violet flowers rise on stalks above the leaves. Lawn or street tree with beautiful yellow-burgundy fall color. Pinus strobus White Pine Excellent specimen, beautiful screen or hedge. Veronica incana 'Pure Silver'. Glossy dark green leaves and very dense habit make Green Lustre a good substitute for boxwood.