Quercus phellos – Willow Oak - Evergreen Trees Direct

Quercus phellos – Willow Oak

$650.00

Tax included. Shipping calculated at checkout.

Size: 100L

100L

All stock is grown, maintained and graded in strict accordance with AS 4373-2007, Australian Standard for Nursery Stock.

Current Stock Height Guides

100L: 2m - 2.5m Approx

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 mustconfirm 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.

Mature Height & Width

Mature Height: 18–25 metres

Mature Width: 12–18 metres

Quercus phellos – Willow Oak is expected to grow 40–60cm per year (moderate).

Root Ball Dimensions

Use this as a reference when digging your planting hole. We recommend digging at least 10% wider than the dimensions below to encourage strong root development.

30cm Pot: 33cm (W) × 30cm (D)
40cm/45L Pot: 44cm (W) × 41.5cm (D)
50cm Pot / 70L Pot: 55cm (W) × 41.8cm (D)
100L Bag: 50.6cm (W) × 52.8cm (D)
150L Bag: 66cm (W) × 55cm (D)
200L Bag: 71.5cm (W) × 60.5cm (D)
300L Bag: 88cm (W) × 63.8cm (D)
400L Bag: 99cm (W) × 66cm (D)
500L Bag: 122cm (W) × 66cm (D)
750L Bag: 134cm (W) × 69cm (D)
1000L Bag: 146.3cm (W) × 71.5cm (D)
2000L Bag: 176cm (W) × 82.5cm (D)

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Contact

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Email: sales@evergreentrees.com.au

Phone: (03) 7042 3318

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About Your New Quercus phellos – Willow Oak

Quercus phellos, commonly known as Willow Oak, is a large deciduous tree with a strong central trunk and a broad, rounded canopy at maturity. It produces narrow, willow-like leaves that are smooth-edged and bright green through spring and summer, creating a refined and uniform canopy texture.

It performs best in full sun and prefers well-drained soils with consistent moisture during establishment. Willow Oak is well suited to temperate and cool temperate climates and tolerates frost, wind exposure, and urban conditions. Growth is moderate to steady, developing into a substantial shade tree over time.

They look excellent when used for avenue planting, street trees, and large feature shade trees in residential, civic, and park landscapes. This species is commonly specified where long-term canopy development and structural presence are required.

Enriched Planting Mix (AO Certified)

$21.95

Features and Benefits

Organically certified product
Improves aeration for roots
A rich blend of Pure Magic Compost, composted animal manure, Gypsum, composted coarse bark and wetting agent
Excellent to mix with heavy clay soils, an organic mixture with added gypsum which is perfect for exotic plants
Revitalises tired soils, adds nutrient and organic matter, no chemical additives, weed free
Assists in retaining moisture in the soil longer after rain or watering

Directions For Use

Water plant well at least several hours prior to planting.
Dig a hole at least twice the width of the pot and 7cm deeper than the pot.
Mix Grow Better Enriched Planting Mix with the soil that has been dug out of the hole, adding about 1/3 planting mix.
Spread a 7cm layer of improved soil in the hole and remove plant from the pot. Tease roots gently if the root ball is very firm and place plant in the planting hole. Check that pot soil is level with the surrounding soil surface level, not higher or lower.
Fill in the hole with improved soil mixture, firm down soil and water well adding Grow Better Plant Starter to final watering.

View full details

Type:

Enriched Planting Mix (AO Certified)

$21.95

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Uses in my Garden

Shade Tree
Avenue Planting
Street Tree
Council or Civic Landscapes
Feature Tree

Quercus phellos – Willow Oak works in an:

Formal Garden – structured, symmetrical design with clipped shapes.
Heritage / Traditional Garden – timeless, classic plantings for period homes.
Woodland Garden – layered, naturalistic design under dappled light.

Is Quercus phellos – Willow Oak Evergreen or Deciduous?

Quercus phellos – Willow Oak is an Deciduous (Defoliates throughout colder months) Tree

Mature Height & Width

Mature Height: 18–25 metres

Mature Width: 12–18 metres

Quercus phellos – Willow Oak is expected to grow 40–60cm per year (moderate).

Growth Rate of Quercus phellos – Willow Oak

Quercus phellos – Willow Oak is expected to grow 40–60cm per year (moderate).

They are considered to have a:

Medium Growth Rate

Frost Tolerance & Ideal Climate to plant Quercus phellos – Willow Oak

Is Quercus phellos – Willow Oak frost tolerant?

Quercus phellos – Willow Oak is Frost Hardy – Survives heavy and frequent frost without damage.

Does Quercus phellos – Willow Oak Flower?

Quercus phellos does not produce ornamental flowers. It forms small, inconspicuous catkins in spring that are followed by typical oak acorns, with the tree valued primarily for its fine, willow-like foliage and elegant form rather than its blooms.

Does Quercus phellos – Willow Oak flower?

Yes - Flowers

Flowering Period:

Spring

Flower Type:

Catkin-like

Flower Colour:

Not Applicable

Is Quercus phellos – Willow Oak an Australian Native Tree?

No

Quercus phellos – Willow Oak is Native to Eastern and southeastern United States, where Quercus phellos grows naturally in lowlands, floodplains, and moist temperate forests.

What is the Wildlife Value of Quercus phellos – Willow Oak ?

Its broad canopy provides valuable shelter and nesting habitat for small birds, while the foliage supports a range of beneficial insects that contribute to a balanced ecosystem. The acorns produced in autumn offer an additional seasonal food source, strengthening biodiversity in larger landscapes.

How much Sunlight does Quercus phellos – Willow Oak need?

Quercus phellos – Willow Oak will thrive best in:

Full Sun

Preferred Soil?

Quercus phellos performs best in well-drained loam soils with consistent moisture and an acidic to neutral pH. It will also tolerate sandy soils if enriched with organic matter to improve water retention and fertility. Avoid alkaline, compacted or waterlogged conditions unless significantly improved, as poor drainage can restrict root development. Keep soil evenly moist during establishment, then gradually reduce watering as the tree matures.

Is Quercus phellos – Willow Oak Drought Tolerant?

Is Quercus phellos – Willow Oak Drought tolerant?

As a young tree it benefits from regular deep watering to establish a strong root system, particularly during warmer months. Once established, Willow Oak shows moderate drought tolerance and performs reliably through dry periods when planted in suitable soils, though occasional supplementary watering supports optimal canopy health during extended heat.

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How To Plant Your Quercus phellos – Willow Oak

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 Quercus phellos – Willow Oak

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.

Quercus phellos – Willow Oak is expected to grow 40–60cm per year (moderate).

Medium Growth Rate

Long Term Care For Your Quercus phellos – Willow Oak

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 Quercus phellos – Willow Oak in Different Soil

Quercus phellos 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.