BLACK WALNUT

The Black Walnut tree (Juglans nigra) is an allelopathic plant. This means that it can suppresses the growth of many different types of plant. The Black Walnut releases a chemical into the soil called juglone which causes the poor growth or outright death of many plants planted under and around the tree. The area affected can reach a 50-60 foot radius around the tree and so meti mes even 80 feet. Luckily for those of you who inherit a black walnut tree with a new ho me there are many types of plants that are not susceptible to the juglone chemical so gardening can still be a joy. Here is a list of plants that have been observed growing under and near Black Walnut trees. As for grass Kentucky Bluegrass grows well under Black Walnuts.

Plants Tolerant of Black Walnuts

Trees
Autumn Olive	Oleaceae spp.	Honey Locust	Gleditsia triacanthos
Black Haw	Viburnum prunifolium	Japanese Maple	Acer palmatum
Beech	Fagus sp.	Lilac	Syringa
Bigleaf Linden	Tilia platyphyllas	Nothern Red Oak	Quercus rubrum
Black Cherry	Prunus serotina	Ohio Buckeye	Aesculus glabra
Black Gum	Nyssa sylvatica	Papaw	Asimina triloba
Black Locust	Robinia pseudoacacia	Quince	Cydonia oblonga
Black Maple	Acer nigra	Red Cedar	Juniperus virginiana
Black Oak	Quercus ventutina	Red Maple	Acer rubrum
Box Elder	Acer negundo	Red Oak	Quercus borealis
Callery Pear	Pyrus calleryana	Redbud	Ceris canadensis
Canadian Hemlock	Tsuga canadensis	Sassafrass	Sassafrass variifolium
Carolina Silverbell	Halesia carolina	Sugar Maple	Acer saccharum
Catalpa	Catalpa bigoniodes	Sumac	Rhus hirta
Flowering Dogwood	Cornus florida	Sweetgum	Liquidamber styraciflua
Goldenrain tree	Koelreuteria paniculata	Sycamore	Plantus occindentalis
Hackberry	Celtis occidentalis	Tree of Heaven	Ailanthus glandulosa
Hawthorn	Crataegus spp.	Tulip Tree	Liriodendron tulipifera
'Heritage' River Birch	Betula nigra	White Mulberry	Morus alba
Hickory	Caraya sp.	White Oak	Querus alba

Herbaceous Plants
Ajuga	Ajuga reptans	Leopard's Bane	Doronicum sp.
Aster	Aster spp.	Lungwort	Pulmonaria sp.
Astilbe	Astilbe sp.	Mayapple	Podophyllum peltatum
Beebalm	Monarda didyma	Merrybells	Uvularia grandiflora
Beebalm	Monarda fistulosa	Milkweed	Asclepias syriaca
Bellflower	Campanula latifolia	Mustards	Brasicca spp.
Bidens	Bidens spp.	Ox-eyed Daisy	Chrysanthemum leucanthemum
Bloodroot	Sanguinaria canadensis	Phlox	Phlox paniculata
Chicory	Cichorium intybus	Pinks	Dianthus armeria
Chrysanthemum	Chrysanthemum	Primrose	Primula x polyantha
Cinnamon Fern	Osmunda cinnamomea	Sedges	Carex spp.
Coral Bells	Heuchera x brizoides	Sedum	Sedum acre
Crested Wood Fern	Dryopteris	Sedum	Sedum spectabile
Crocus	Crocus spp.	Shasta Daisy	Leucanthemum
Daisy Flebane	Erigeron annus	Siberian Iris	Iris sibirica
Daylily	Hemerocalis sp.	Solomon's Seal	Polygonatum commutatum
Dutchman's Breeches	Dicentra cucullaria	Spiderwort	Tradescantia virginiana
European Wild Ginger	Asarum edropaeum	Spring Beauty	Claytonia virginica
Geranium	Geranium sanguimeum	Sundrops	Oenothera fruticosa
Geranium	Geramium robertianum	Sweet Woodruff	Galium odoratum
Hawkweed	Hieraclum aurantiacum	Tall Bellflower	Campanula americana
Hollyhock	Alcea rosea	Trillium	Trillium grandiflorum
Horsetail	Equisetum arvense	Trillium	Trililium cernumm
Hosta	Hosta marginata	Violets	Viola canadensis
Hosta	Hosta fortunei h. lancifolia	Violets	Viola sororia
Hosta	Hosta lancifolia	Virginia Waterleaf	Hydrophyllum virginianum
Hosta 'Glauca'	Hosta fortunei	Wild Ginger	Asarum virginicum
Hosta 'Variegata'	Hosta undulata	Wild Senna	Cassia marilandica
Iris, Siberian	Iris sibirica	Wild Sensitive Plant	Cassia nictitans
Jack-in-the-Pulpit	Arisaema triphyllum	Windflower	Anemone spp.
Jacob's-Ladder	Polemonium reptans	Yarrow	Achillea millefolium
Lamb's Ear	Stachys byzantina

Shrubs
Alternate-Leaf Dogwood	Cornus alternifolia	Hibiscus	Hibiscus
Arborvitae	Thuja sp.	Juniper	Juniperus
Azalea, Exbury Hybrid	Rhododendron	Kerria	Kerria japonica
Barberry	Berberis canadensis	Maple-Leaf Viburnum	Viburnum acerfolium
Beauty Bush	Kolkwitzia amabils	Mock Orange	Philadelphus sp.
Black Raspberry	Rubus occidentalis	Rose of sharon	Hibiscus syriacus
Currant	Ribes spp.	Smooth Sumac	Rhus glabra
Daphne	Daphne	Spicebush	Lindera benzoin
Elderberry	Sambucus canadensis	St. John's Wort	Hypericum prolificum
Euonymus, Winter Creeper	Euonymus	Viburnum	Viburnum lantana
False Indigo	Baptisia australis	Wild Grape	Vitis spp.
Forsythia spp.	Forsythia	Wild Rose	Rosa spp.
Hazelnut	Corylus Americana

Annuals
Begonia	Begonia
Calendula	Calendula
Morning Glory	Ipomoea
Pansy	Viola
Zinnia	Zinnia sp.

Vegetables
Squashes
Melons
Beans
Carrots
Corn

Fruit
Peach
Nectarine
Cherry
Plum

Bulbs
Crocus	Crocus
Daffodil	Narcissus
Glory-of-the-Snow	Chionodoxa lucilliae
Grape Hyacinth	Hyacinth oreintalis
Snowdrop	Gulanthus
Spanish Blue Bell	Endymion hispanica
Squill	Scilla
Tulip	Tulipa
Winter Aconite	Eranthis

Vines
Clematis	Clematis
Honeysuckle	Lonicera tatarica
Virginia Creeper	Parthenocissus quinquefolia
Bittersweet	Celastrus scandens
Sweet Autumn Clematis	Clematis ternifolia
Sweet Virgin's Bower	Clematis virginiana

March 24, 2010 | View: 1490

BLACK WALNUT

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