About

Eastern Black Walnut

The Eastern Black Walnut (Juglans nigra) is a North American deciduous tree known for its dark, valuable wood and edible nuts. It features a tall trunk with deeply furrowed bark, large pinnate leaves, and produces juglone, which can inhibit nearby plant growth.
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The Appearance

It is a large deciduous tree with dark, deeply furrowed bark, wide leaves that turn yellow in autumn and a broad canopy.


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The Produce

Its round, green fruits contain the prized black walnut nut, renowned for its rich flavour.


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The Flowers

The flowers are small and inconspicuous, typically appearing in early spring before the leaves emerge. The flowers are arranged in drooping catkins, with male and female flowers borne separately on the same tree (monoecious).


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The Leaves

Each leaf is pinnately compound with 15 to 23 lance-shaped leaflets arranged in pairs. Each leaflet has serrated edges and a glossy dark green upper surface, with a lighter underside.


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The Bark

The Eastern Black Walnut features dark, deeply furrowed bark with an interlacing diamond pattern.


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The Habitat

This tree thrives in well-drained soils and full sunlight.


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The Ecology

As a hardwood tree, it provides food and shelter for numerous species. Its nuts are a vital food source for wildlife, including squirrels, deer, and birds.


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The Culture

Valued for its valued for its high-quality timber, edible nuts, and ecological contributions.


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Fun Facts

The wood of the Eastern Black Walnut is highly valued for its strength and deep brown colour, making it a favourite for fine furniture and cabinetry.


Explore Deeper With The Interactive Map

Unleash your inner explorer with our interactive map of the Arboretum. This live map labels the location of every tree in the arboretum, providing detailed information on each one.

Dive into the fascinating stories behind each tree, learn about their origins, characteristics, and unique attributes. The interactive map is your perfect companion for an engaging and educational adventure. Discover the rich tapestry of nature with just a few clicks!

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