What Will Grow Under Walnut Trees?
Lorraine, The only vegetables immune to juglone (the toxic substance produced by walnut trees) are squash, melons, beans, carrots, corn, and black raspberries. Some veggies are very susceptible to the effects of juglone (e.g. tomatoes, peppers, potatoes), so for that reason, I recommend composting any debris from your trees (leaves, twigs, husks, and wood chips) before adding it to the garden. This give the juglone time to break down into non-toxic components, and minimizes the risk of injuring highly susceptible plants. Here is a list of ornamental landscape plants hardy to your zone that should do well under walnut trees: • Astilbe • Bee Balm • Bellflower • Bloodroot • Cinnamon Fern • Cranesbill • Crocus • Daylilies • Dutchman s Breeches • Garden Phlox • Glory-of-the-Snow • Hollyhock • Hosta • Jack-in-the-pulpit • Lamb s Ear • Lungwort • Morning Glory • Pansies • Pot Marigold • Sedum • Siberian Squill • Snowdrop • Spanish Bluebell • Spiderwort • Sundrops • Sweet Woodruff • Violets •
