Plants Observed Growing Under or Near Black Walnut

Trees

• Japanese Maples, Acer palmatum and its cultivars
• Southern Catalpa, Catalpa bignonioides
• Eastern Redbud, Cercis canadensis
• Canadian Hemlock, Tsuga canadensis

Vines and Shrubs

• Clematis ‘Red Cardinal’
• February Daphne, Daphne mezereum
• Euonymus species
• Weeping Forsythia, Forsythia suspense
• Rose of Sharon, Hibiscus syriacus
• Tartarian Honeysuckle, Lonicera tatarica, and most other Lonicera species
• Virginia Creeper, Parthenocissus quinquefolia
• **Pinxterbloom, Rhododendron periclymenoides
• **’Gilbraltar’ and ‘Balzac’, Rhododendron Exbury hybrids
• Multiflora Rose, Rosa multiflora
• Black Raspberry, Rubus occidentalis
• Arborvitaes, Thuja species
• **Koreanspice Viburnum, Viburnum carlesii, and most other Viburnum species

Annuals

• Pot-marigold, Calendula officianalis ‘Nonstop’
• Begonia, fibrous cultivars
• Morning Glory, Ipomoea ‘Heavenly Blue’
• Pansy Viola
• Zinnia species

Vegetables

• Squashes, Melons, Beans, Carrots, Corn

Fruit Trees

• Peach, Nectarine, Cherry, Plum
• Prunus species Pear-Pyrus species

Herbaceous Perennials

• Bugleweed, Ajuga reptans
• Hollyhock, Alcea rosea
• American Wood Anemone, Anemone quinquefolia
• Jack-in-the-Pulpit, Arisaema triphyllum
• European Wild Ginger, Asarum europaeum
• Astillbe species
• Bellflower, Campunula latifolia
• **Chrysanthemum species (some)
• Glory-of-the-Snow, Chionodoxa luciliae
• Spring Beauty, Claytonia virginica
• Crocus species
• Dutchman’s Breeches, Dicentra cucullaria
• Leopard’s-Bane, Doronicum species
• Crested Wood Fern, Dryopteris cristata
• Spanish Bluebell, Endymion hispanicus
• Winter Aconite, Eranthis hyemalis
• Snowdrop, Galanthus nivalis
• Sweet Woodruff, Galium odoratum
• Herb Robert, Geranium robertianum
• Cranesbill, Geranium sanguineum
• Grasses (most) Gramineae family
• Jerusalem Artichoke, Helianthus tuberosus
• Common Daylily, Hemerocallis ‘Pluie de Feu’
• Coral Bells, Heuchera x brizoides
• Orange Hawkweed, Hieracium aurantiacum
• Plantain-lily, Hosta fortunei ‘Glauca’
• Hosta lancifolia
• Hosta marginata
• Hosta undulata ‘Variegata’
• Common Hyacinth,Hyacinthus Orientalis ‘City of Harlem’
• Virginia Waterleaf, Hydrophyllum virginianum
• Siberian Iris, Iris sibirica
• Balm, Monarda didyma
• Wild Bergamot, fistulosa
• Grape Hyacinth, Muscari botryoides
• Sweet Cicely, Myrrhis odorata ‘Yellow Cheerfulness’, ‘Geranium’, ‘Tete a Tete,’ ‘Sundial’, February Gold’
• Sundrops, Oenothera fruticosa
• Sensitive Fern, Onoclea sensibilis
• Cinnamon Fern, Osmunda cinnamomea
• Peony, **Paeonia species (some)
• Summer Phlox, Phlox paniculata
• Mayapple, Podophyllum peltatum
• Jacob’s-Ladder, Polemonium reptans
• Great Solomon’s-Seal, Polygonatum commutatum
• Polyanthus Primrose, Primula x polyantha
• Lungwort, Pulmonaria species
• Bloodroot, Sanguinaria canadensis
• Siberian Squill, Scilla sibirica
• Goldmoss Stonecrop, Sedum acre
• Showy Sedum, Sedum spectabile
• Lamb’s-Ear, Stachy byzantina
• Spiderwort, Tradescantia virginiana
• Nodding Trillium, Trillium cernuum
• White Wake-Robin, Trillium grandiflorum
• Tulipa Darwin ‘White Volcano’ and ‘Cum Laude,’ ‘Parrot,’ ‘Blue Parrot,’ ‘Greigii Toronto’
• Big Merrybells, Uvularia grandiflora
• Canada Violet, Viola canadensis
• Horned Violet, Viola cornuta
• Woolly Blue Violet, Viola sororia

*Based upon observations and not from clinical tests
**Cultivars of some species may do poorly