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Juglans nigra

Black walnut

Garden

Wishlist

  • Juglans nigra | Copyright Greenplantswap 2019
  • Juglans nigra | Copyright Greenplantswap 2019
  • Juglans nigra | Copyright Greenplantswap 2019
  • Juglans nigra | Copyright Greenplantswap 2019
  • Juglans nigra | Copyright Greenplantswap 2019
  • Juglans nigra | Copyright Greenplantswap 2019
  • Juglans nigra | Copyright Greenplantswap 2019
  • Juglans nigra | Copyright Greenplantswap 2019

Features

  • BloomsMay to June
  • Height20m to 30m
  • Spread10m to 22m
  • Growth HabitUpright hemi-spherical
  • Flower ColourGreen yellow
  • Leaf ColourGlossy dark green-yellow

Description

Juglans nigra (Black walnut). This is a fast-growing deciduous tree. It can grow up to 50m but mostly grows to about 30m. It has a single trunk with a broad rounded crown. The greenish brown catkins will appear in the spring with the early leaves, and they are followed by dark brown edible nuts enclosed in a green husk. The leaves are made up of glossy dark green leaflets.

Characteristics

Woody perennial, Deciduous, Fragrant

Other common names

Walnut

Origin

Eastern N. America

Interest and use

Edible nuts, high-value timber, shade, wildlife

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  • Juglans nigra | Copyright Greenplantswap 2019
  • Juglans nigra | Copyright Greenplantswap 2019
  • Juglans nigra | Copyright Greenplantswap 2019
  • Juglans nigra | Copyright Greenplantswap 2019
  • Juglans nigra | Copyright Greenplantswap 2019
  • Juglans nigra | Copyright Greenplantswap 2019
  • Juglans nigra | Copyright Greenplantswap 2019
  • Juglans nigra | Copyright Greenplantswap 2019

Needs

  • LightFull sun
  • HardinessHalf hardy (min 0°C)
  • SoilWell drained, Fertile, Low salinity
  • Soil pH6.0 to 8.0
  • WaterSemi-moist

Propagation

Propagation is by seeds when ripe in the autumn.

Pests, diseases or disorders

Aphids, blister mites, honey fungus and leaf spot may cause problems.

Search or browse our Glossary of 3,000+ botanical and plant-related terms


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