4499

Estimated Height at Pickup: 2-3’, 3 gal

A.k.a. white walnut. Another species routed by blight, this cousin of black walnut is listed as ‘Endangered’ on the ICUN Red List. Historically valued for its crop of sweet, edible nuts, this species is now an uncommon sight. As this is a straight butternut (not hybridized with Japanese walnut) and the canker that affects this species is still common, NPU carries this species on an “at your own risk” basis.

Pollination: 2+ individuals needed.

Light: Full Sun

Soil Moisture: Wet Mesic, Mesic

Soil Type: Loam

Height: 40’-60’

Width: 30’-50’

Bloom Color: Green/Brown

Bloom Time: Apr-May

Fruit: Oblong, black walnut-lake fruits mature in fall.

Fall Color: Yellow/Brown

Root Type: Taproot

Notable Wildlife Interactions: Hosts the banded and hickory hairstreak butterflies, moths including the walnut sphinx, and a few beetles and smaller insects. Nuts are eaten by a variety of animals.

Notes: While male and female flowers occur on the same tree, they generally mature at tifferent times to avoid self pollination. Some plants may not develop a taproot in shallow soil. Due to endemic diseases, this species now rarely lives past 75 years.

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