Trees:

Acer saccharinum (Silver Maple)
*Betula lenta (Sweet Birch)
*Cornus kousa (Kousa Dogwood)
Crataegus spp. (Hawthorn)
*Cryptomeria japonica (Japanese Cedar)
*Fraxinus pennsylvanica (Green Ash)
*Ilex opaca (American Holly)
*Juniperus virginiana (Eastern Red Cedar)
*Liquidambar styraciflua (Sweetgum)
*Picea glauca (White Spruce)
Picea pungens (Colorado Spruce)
Picea abies (Norway Spruce)
Pinus sylvestris (Scots Pine)
Pyrus communis (Common Pear)
*Pyrus calleryana (Callery Pear)

Shrubs:

*Amelanchier spp. (Service Berry)
*Berberis spp. (except B. thunbergii) (Barberry)
*Buddleia spp. (Butterfly bush)
*Buxus sempervirens (Boxwood)
*Caryopteris spp. (Blue Mist Caryopteris)
*Clethra spp. (Sweet Pepperbush)
*Cornus sericea (Red-twig Dogwood)
*Cotinus coggygria (Smoke Tree)
*Cotoneaster spp. (Cotoneaster)
*Enkianthus campanulatus (Redvein Enkianthus)
*Forsythia spp. (Forsythia)
*Hibiscus syriacus (Rose of Sharon)
*Lagerstroemia spp. (Crape Myrtle)
*Mahonia spp. (Mahonia)
*Myrica spp. (Bayberry)
*Pieris japonica (Japanese Pieris)
*Potentilla spp. (Cinquefoil)
*Sassafras albidum (Sassafras)
*Spiraea spp. (Spirea)
*Yucca spp. (Yucca)

Herbaceous:

Achillea spp. (Yarrow)
Aconitum spp. (Monkshood)
Agapanthus spp. (Lily of the Nile)
Ageratum spp. (Floss flower)
Allium spp. (Allium)
Allium schoenoprasum (Chives)
Anaphalis triplinervis (Pearly Everlasting)
Anemone spp. (Windflower)
Aquilegia spp. (Columbine)
Arabis spp. (Cress)
Armeria maritima (Sea Pink)
Artemisia spp. (Artemisia)
Astilbe spp. (Astilbe)
Aubretia spp. (False Rockcress)
Calendula spp. (Pot Marigold)
Campanula carpatica (Harebell)
Campanula medium (Canterbury Bells)
Chrysanthemum spp. (Daisy)
Coreopsis spp. (Coreopsis)
Cynoglossum nervosum (Houndstongue)
Delphinium spp. (Delphinium)
Dicentra spp. (Bleeding Heart)
Digitalis spp. (Foxglove)
Dryopteris spp. (Wood Fern)
Festuca spp. (Fescue Grass)
Gaillardia spp. (Blanket Flower)
Helleborus spp. (Lakespur)
Hyacinthoides spp. (Hyacinth)
Hypericum spp. (St. John's Wort)
Iris spp. (Iris)
Linaria macroccana (Toad Flax)
Lupinus spp. (Lupine)
Lychnis spp. (Rose Campion)
Mentha spicata (Spearmint)
Moluccella laevia (Bells of Ireland)
Narcissus spp. (Daffodils)
Nephrolepis (Sword fern)
Nepeta spp. (Cat Mint)
Origanum spp. (Marjarom)
Paeonia lactiflora (Peony)
Papaver orientale (Oriental Poppy)
Perovskia spp. (Russian Sage)
Tanacetum vulgare (Tansy)
Pteridium spp. (Bracken)
Pulsatilla vulgaris (Pasque Flower)
Rosmarinus officinalis (Rosemary)
Salvia spp. (Sage/salvia)
Santolina spp. (Lavender Cotton)
Sedum kamtschaticum (Yellow Stonecrop)
Stachys byzantina (Lamb's Ear)
Teucrium spp. (Germander)
Trillium spp. (Trillium)
Woodwardia spp. (Chain Fern)

Ground Covers:

*Calluna spp. (Heather)
*Erica spp. (Heath)
Ajuga reptans (Carpet Bugle)
Lavandula augustifolium (Lavender)
*Arctostaphylos uva-ursi (Bearberry)
Thymus spp. (Thyme)
*Vinca minor (Myrtle; may be invasive)
Zantedeschia spp. (Calla Lily)

Vines:

Lonicera semipervirens (Trumpet Honeysuckle)
Wisteria spp. (Wisteria)