In her southeastern Pennsylvania garden, Nancy Ondra, author of the book Fallscaping, relies on long-blooming perennials like Shasta Daisy (Leucanthemum), Coreopsis (Coreopsis lanceolata) and perennial sages (e.g., Sage officinalis) that start flowering in summer and keep going into the fall and those like Asters (Asteraceae),
Boltonias (
Boltonia asteroides) and Joe-Pye weeds (Eupatorium purpurea) that rebloom in fall if you cut them back after their first round of summer flowers.
I took classes at the New England Wild Flower Society's native plant center, and grew beautiful native flowering plants such as butterfly weed, liatris, coneflower,
boltonia, rose mallow, virginia rose, rudbeckia, New England aster, perennial sunflowers (helianthus) and native grasses, such as switch grass.
The following is a list of both nectar and host plants: Achillea, allium, antirrhinum, aquilegia, armeria, artemesia, ascelepia,
boltonia, buddleia, campanula, caryopteris, centranthus, chelone, coreopsis delphinium, dianthus, digitalis, echinacea, erigerion, erynigium, eupatorium, foeniciculum, gaillardia, gaura, helenium, hemerocallis, hypericum, hyssops, inula, leucanthemum, liatris, lobelia, lychnis, lysimachia, malva, monarda, nepeta, origanum, penstemon, perovskia, phlox, physotegia, rudbekia, rue, salix, salvia, sedum, sempervivum, thalictrum, thymus, valeriana, veronica, veronicastrum, humulus, loncera, campsis, loncera, and viola.