Skip to content

Volume Discounts Apply At Checkout

Juglans nigra Black Walnut

Juglans nigra Black Walnut

Most loved for its stately form, rich dark-green foliage, valuable hardwood timber, and edible nuts enclosed in thick green husks.

Regular price $280.00
Sale price $280.00 Regular price
Tax included. Shipping calculated at checkout.
Pot size
Available batches
Title: 40cm/45L
Current height guide
Please enquire
Pot size
40cm/45L

Approximate only. Minimum height important? Confirm with us.

Height guide & disclaimer

Height guide disclaimer: Height ranges are approximate only. As living products, plant heights naturally vary between individual plants, batches, and seasons. No guarantee is given that supplied plants will fall within the stated range. If minimum heights are required, you must confirm current batch heights with Evergreen Trees Direct prior to purchase. Variation in height is normal and is not grounds for return, refund, replacement, or compensation.

Quantity

Order multiple sizes

Mix pot sizes and batches in one order.

Size / batchEachQuantity
40cm/45LApprox. height: Approx. 1.0m – 1.5m$280.00

Height guide & disclaimer

Height guide disclaimer: Height ranges are approximate only. As living products, plant heights naturally vary between individual plants, batches, and seasons. No guarantee is given that supplied plants will fall within the stated range. If minimum heights are required, you must confirm current batch heights with Evergreen Trees Direct prior to purchase. Variation in height is normal and is not grounds for return, refund, replacement, or compensation.

Subtotal before discounts & delivery$0.00

Delivery is calculated at checkout.

Ask a question

The fields marked * are required.

Compare trees

Choose two trees and compare the same pot size.

    About Juglans nigra 'Black Walnut'

    Juglans nigra, the Black Walnut, is a majestic deciduous tree valued both for its exceptional timber and its stately presence in the landscape. Large pinnately compound leaves provide lush green shade through the warmer months, turning a clear yellow in autumn.

    Black Walnut grows to 15-25 metres tall and wide, developing a rounded canopy on a straight trunk for a grand, stately form. It makes a magnificent shade tree for large gardens, rural properties, and parks. Trees produce edible walnuts with a rich distinctive flavour after several years.

    Black Walnut performs best in cool to temperate regions including VIC, NSW, ACT, Tasmania, and elevated parts of SA and WA, in full sun with deep well-drained soil. It is drought tolerant once established and low maintenance. Note its roots release juglone, a natural compound that can inhibit some other plants nearby.

    Frequently Asked Questions

    About Juglans nigra Black Walnut

    How tall does Black Walnut grow?

    Juglans nigra grows to 15-25 metres tall and 12-18 metres wide with a broad rounded canopy.

    How fast does Black Walnut grow?

    Black Walnut is moderately fast-growing, adding 50-80cm per year once established.

    Does Black Walnut produce edible nuts?

    Yes. Juglans nigra produces edible walnuts with a rich, distinctive flavour, encased in a hard shell. Trees take several years to begin bearing.

    Is Black Walnut deciduous?

    Yes. Black Walnut is fully deciduous, with large compound leaves that turn yellow in autumn before dropping in winter.

    Is Black Walnut suitable for residential gardens?

    Black Walnut suits large gardens, rural properties, and parks due to its mature size. Note that its roots release juglone, a natural compound that can inhibit some other plants nearby.

    Where does Black Walnut grow best in Australia?

    Black Walnut performs best in cool to temperate regions including VIC, NSW, ACT, Tasmania, and elevated parts of SA and WA, in deep well-drained soil.

    How far apart should I plant Black Walnut?

    Plant 8-12 metres apart given the broad mature canopy, or as individual specimens with plenty of room.

    Foliage

    Deciduous (Defoliates throughout colder months)

    Position
    • Full Sun
    Form
    • Rounded
    • Oval
    Use
    • Shade Tree
    • Feature Tree
    • Rural Property Planting
    Mature height
    20m to 30m (approx.)
    Mature width
    15m to 30m

    Planting Information

    How To Plant Your Juglans nigra Black Walnut

    Site: Choose a well-drained position in full sun to part shade with room for the canopy to develop.

    Soil preparation: Enrich the planting area with quality compost and aged manure for a strong establishment phase.

    Hole: Dig twice as wide as the root ball and the same depth.

    Planting: Position level with the surrounding soil, backfill gently, firm in, then water deeply to settle the roots.

    Recommended Planting Spacing For Your Juglans nigra Black Walnut

    Feature tree: 3 to 4 metres apart to allow the full canopy and form to develop.

    Avenue planting: 3 metres apart for a uniform soft-textured avenue.

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

    • Fast Growth Rate

    Long Term Care For Your Juglans nigra Black Walnut

    Watering: Water deeply twice weekly through the first 12 months. Once established, reduce to once weekly in dry periods. Mulch helps maintain consistent moisture.

    Mulching: Apply a 5 to 7 centimetre layer of organic mulch over the root zone, keeping it 5 centimetres clear of the trunk.

    Pruning: Minimal pruning required. Light tip prune in late winter to maintain shape, and remove lower branches as the tree grows to develop a clean feature trunk.

    Fertilising: Apply a slow-release general-purpose fertiliser in early spring and again in autumn for steady growth and consistent foliage colour.

    Pest and disease: Hardy against most pests and diseases. Occasional scale or caterpillar inspection in warm humid conditions is all that's needed.

    Planting Your Juglans nigra Black Walnut in Different Soil

    Juglans nigra performs best in well-drained loam or sandy loam with a slightly acidic to neutral pH. Adaptable to a wide range of soils when drainage is improved with organic matter.

    Sandy soil: Free-draining and ideal. Mulch well to maintain consistent moisture.

    Clay soil: Improve drainage with gypsum and organic compost before planting.

    Loam: The preferred soil for steady root development and consistent growth.

    pH: Slightly acidic to neutral preferred. Mulch with composted leaf litter to maintain levels naturally.

    Uses in my Garden

    Uses in my Garden

    • 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.

    Is Juglans nigra Black Walnut Evergreen or Deciduous?

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

    Mature Height & Width

    Mature Height: 20m to 30m (approx.)

    Mature Width: 15m to 30m

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

    Growth Rate of Juglans nigra Black Walnut

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

    They are considered to have a:

    • Fast Growth Rate

    Frost Tolerance & Ideal Climate to plant Juglans nigra Black Walnut

    Is Juglans nigra Black Walnut frost tolerant?

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

    Does Juglans nigra Black Walnut Flower?

    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

    Is Juglans nigra Black Walnut an Australian Native Tree?

    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.

    What is the Wildlife Value of Juglans nigra Black Walnut ?

    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.

    How much Sunlight does Juglans nigra Black Walnut need?

    Juglans nigra Black Walnut will thrive best in:

    • Full Sun

    Preferred Soil?

    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?

    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.

    Frequently Asked Questions

    How tall does Black Walnut grow?

    Juglans nigra grows to 15-25 metres tall and 12-18 metres wide with a broad rounded canopy.

    How fast does Black Walnut grow?

    Black Walnut is moderately fast-growing, adding 50-80cm per year once established.

    Does Black Walnut produce edible nuts?

    Yes. Juglans nigra produces edible walnuts with a rich, distinctive flavour, encased in a hard shell. Trees take several years to begin bearing.

    Is Black Walnut deciduous?

    Yes. Black Walnut is fully deciduous, with large compound leaves that turn yellow in autumn before dropping in winter.

    Is Black Walnut suitable for residential gardens?

    Black Walnut suits large gardens, rural properties, and parks due to its mature size. Note that its roots release juglone, a natural compound that can inhibit some other plants nearby.

    Where does Black Walnut grow best in Australia?

    Black Walnut performs best in cool to temperate regions including VIC, NSW, ACT, Tasmania, and elevated parts of SA and WA, in deep well-drained soil.

    How far apart should I plant Black Walnut?

    Plant 8-12 metres apart given the broad mature canopy, or as individual specimens with plenty of room.

    Compare sizes side by side

    40cm/45L

    Approx. 1.0m – 1.5m

    Heights are approximate and vary between individual trees.

    Juglans nigra 'Black Walnut' is loved for its stately form, rich dark-green foliage, valuable hardwood timber, and edible nuts enclosed in thick green husks.

    We take pride in supplying A+ grade advanced trees. When stock at our farm is not yet ready, we work with our trusted trade suppliers to source the best available trees for your garden.

    Plant Your Juglans nigra Black Walnut With:

    Enriched Planting Mix (AO Certified)

    Enriched Planting Mix is a certified organic blend of Pure Magic Compost, composted animal manure, gypsum, composted coarse bark and a wetting agent, bagged in 30L. It is built to be dug through existing garden soil at planting time rather than used on its own, and the gypsum is what sets it apart from a plain compost.

    Gypsum helps break up heavy clay so water and roots can move through it, while the compost and manure return organic matter and nutrient to tired ground. The coarse bark holds structure and keeps air around the root zone, and the wetting agent keeps moisture in the soil longer after rain or watering.

    Use it when planting trees, shrubs, roses, fruit trees and exotic garden plants, particularly into clay. Dig a hole twice the width of the pot and 7 centimetres deeper, then mix roughly one third planting mix through the excavated soil. Spread 7 centimetres of that improved soil in the base before setting the plant in.

    Frequently Asked Questions

    About Enriched Planting Mix

    What is Enriched Planting Mix made from?

    It is a blend of Pure Magic Compost, composted animal manure, gypsum, composted coarse bark and a wetting agent. Each part has a job. The compost and manure supply organic matter and nutrient, the gypsum works on clay structure, the bark keeps air around the roots and the wetting agent holds moisture in the soil.

    What plants is it suitable for?

    It suits exotic garden plants, including roses, ornamental and deciduous trees, fruit trees, shrubs and perennials, and it earns its keep most on heavy clay sites. It is a planting mix rather than a potting mix, so its job is improving soil at planting time. Phosphorus sensitive natives are the one clear exception.

    Is it safe for natives?

    No, not for the phosphorus sensitive ones. The composted animal manure in this blend lifts phosphorus well above what Proteaceae such as Banksia, Grevillea, Hakea and Protea will tolerate, and the result can be leaf burn, dieback and plant death. Use the Native Potting Mix for those species, or plant them into unimproved local soil.

    Is it certified organic?

    Yes. It is a certified organic product with no chemical additives, which is why the manure and compost in it are fully composted rather than raw. That makes it sound around fruit trees and vegetable beds, and it means you are adding genuine organic matter to your soil rather than a synthetic conditioner.

    How much do I need?

    Work on roughly one third planting mix to two thirds of the soil you dug out of the hole. For a shrub out of a 200 millimetre pot that is only a few litres. An advanced tree going into a large hole will take considerably more. Judge the quantity by the volume of the hole rather than the size of the plant.

    Can I use it in pots?

    It is not a potting mix and should not be used on its own in a container. The blend is designed to be diluted through garden soil, and used straight in a pot it holds too much water and settles badly. For containers, reach for a premium potting mix, or the native mix if you are potting natives.

    Does it need to be watered in?

    Yes. Water the plant well several hours before you plant it, then water thoroughly again once the hole is backfilled and the soil firmed down. That first deep watering settles the improved soil around the root ball and drives out air pockets. Keep the water up over the first few months while the roots establish.

    youtube Load video:

    Evergreen Trees Direct Has Been Featured In:

    Perfect Substitutes for Juglans nigra Black Walnut

    Follow Us On Instagram

    @evergreentreesdirect ↗
    Evergreen Trees DirectEvergreen Trees DirectEvergreen Trees DirectEvergreen Trees DirectEvergreen Trees Direct
    youtube Load video: