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Zones 1-9, 14-16, 18-21, 28-43
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Full
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Moderate

Walnut (Black)

Black walnut
Juglandaceae
Deciduous, Edible fruit, Trees

WALNUT

Usually large and spreading; leaves are divided into many leaflets and have a featherlike appearance. Bear oval or round nuts enclosed in a fleshy husk. English walnut is a well-known orchard tree (see Walnut). American native species such as black walnut are sometimes planted as shade trees (with a bonus of edible nuts) or used as an understock for grafting English walnut.

Walnut (Black)

Native to eastern North America. High-branched tree to about 100 ft. tall, 70 ft. wide, with round crown and furrowed blackish brown bark. Leaves have 11–23 leaflets, each 2 1/2–5 in. long. Round, 1 1/2-in.-diameter nuts have rich flavor. Big, hardy shade tree for large sites. Don't plant near flower or vegetable gardens, rhododendrons, or azaleas; black walnut curbs these plants either by secreting a growth-inhibiting substance or by root competition. Long dormant season.

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