Juglans nigra 'Black Walnut'

• Shade Tree
• Feature Tree
• Rural Property Planting

Juglans nigra 'Black Walnut' works in an:

• Edible Garden – integrates fruit, herbs, and productive plants.
• Woodland Garden – layered, naturalistic design under dappled light.
• Low-maintenance Garden – resilient choices for easy care and year-round appeal.

Juglans nigra 'Black Walnut' is an Deciduous (Defoliates throughout colder months) Tree

Mature Height: 20m - 30m Approximately

Mature Width: 15 – 30 meters

Juglans nigra 'Black Walnut' is expected to grow 40 – 60 cm per year (moderate to fast) .

Juglans nigra 'Black Walnut' is expected to grow 40 – 60 cm per year (moderate to fast) .

They are considered to have a:

• Fast Growth Rate

Is Juglans nigra 'Black Walnut' frost tolerant?

Juglans nigra 'Black Walnut' is Frost Hardy – Survives heavy and frequent frost without damage.

• Northern NSW (Byron, Coffs, Armidale)
• Sydney & Central Coast
• South Coast NSW (Illawarra to Bega)
• Inland NSW / Tablelands (Orange, Bathurst, Canberra)
• Melbourne & Surrounds (Metro, Bayside, Geelong, Bellarine, Mornington)
• Western District & Central VIC (Ballarat, Bendigo, Hamilton)
• Gippsland (Latrobe Valley, East Gippsland)
• Adelaide Metro & Coastal
• Adelaide Hills & Barossa

Juglans nigra produces long, greenish-yellow male catkins and small, inconspicuous female flowers in mid- to late spring. The blooms are subtle and largely hidden within the canopy, with the tree’s seasonal interest coming more from its bold foliage and developing walnuts than from its flowering display.

Does Juglans nigra 'Black Walnut' flower?

• Yes - Flowers

Flowering Period:

• Spring

Flower Type:

• Not Applicable

Flower Colour:

Not Applicable

No

Juglans nigra 'Black Walnut' is Native to Eastern North America, from southern Canada through the United States, where it grows naturally in fertile, well-drained soils along river valleys and forests.

Its highly nutritious walnuts provide food for birds and small mammals, while the broad, spreading canopy offers excellent nesting and shelter habitat for small birds. The textured bark supports insects and microfauna, and the leaf litter contributes to a rich woodland ecosystem beneath the tree.

Juglans nigra 'Black Walnut' will thrive best in:

• Full Sun

Juglans nigra performs best in deep, well-drained loam or sandy loam soils and prefers slightly acidic to neutral conditions. It may struggle in compacted clay or very shallow soils unless improved with organic matter to enhance drainage and root depth. Keep soil evenly moist during establishment, then provide deep, occasional watering as the tree matures to support strong structure, nut development and long-term vigour.

Is Juglans nigra 'Black Walnut' Drought tolerant?

As a young tree it requires regular watering, but once established Black Walnut develops moderate drought tolerance. It performs well in warm, dry conditions provided it receives deep, occasional watering during extended dry spells to maintain canopy health, nut production and steady growth.