Black walnut trees - Knowledgebase Question

Buffalo, Ne
Question by IrmaBurns
June 13, 2009
What will grow under these trees? I am interested in perennials.


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Answer from NGA
June 13, 2009

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Some of the most juglone tolerant perennials include:

Bugleweed, Ajuga reptans; Hollyhock, Alcea rosea; American Wood Anemone, Anemone quinquefolia; Jack-in-the-Pulpit, Arisaema triphyllum; European Wild Ginger, Asarum europaeum ; Astilbe species; Bellflower, Campanula 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 Haarlem'; Virginia Waterleaf, Hydrophyllum virginianum ;Siberian Iris, Iris sibirica; Balm, Monarda didyma; Wild Bergamot, M. fistulosa; Grape Hyacinth, Muscari botryoides ; Sweet Cicely, Myrrhis odorata 'Yellow Cheerfulness,' 'Geranium,' 'Tete a Tete,' 'Sundial,' and 'February Gold';
Sundrops, Oenothera fruticosa; Senstitive 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, Stachys byzantina ;Spiderwort, Tradescantia virginiana; Nodding Trillium, Trillium cernuum ; White Wake-Robin, Trillium grandiflorum ; Tulipa Darwin 'White Valcano' and 'Cum Laude,' Parrot 'Blue Parrot,' Greigii 'Toronto';
Big Merrybells, Uvularia grandiflora ; Canada Violet, Viola canadensis; Horned Violet, Viola cornuta; and Woolly Blue Violet, Viola sororia.

Hope this list is helpful!

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