Black Walnut Tolerant Plants

At this time many of our plants are sold out. They will become available again, later this summer. You may place an order now for fall shipping, however, if the plants that you had hoped to order are not available, please check back with us in mid-July to place your order. (Seed orders are always shipped within a week of the order being placed.)

Black Walnut trees produce a chemical called hydrojuglone, which is found in the leaves, stems, fruit hulls, inner bark and roots. When exposed to the air or soil, hydrojuglone is oxidized into the chemical juglone. Juglone is toxic to a number of plants, but there are also many plants that are resistant to the toxins. The native plants in this category are compiled from a variety of reliable sources and from our own experience.  Note: Soil that is compacted, slow draining, or lacks sufficient healthy microbial growth, will have less success supporting plants under Black Walnut trees.

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