Allocasuarina littoralis - Black She Oak - Evergreen Trees Direct

Allocasuarina littoralis - Black She Oak

$150.00

Tax included. Shipping calculated at checkout.

Size: 30cm/33cm

30cm/33cm 40cm/45L

Current Stock Height Guides

40cm/45L: 1m – 1.2m 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: 5m to 8m

Mature Width: 3m to 5m

Allocasuarina littoralis - Black She Oak is expected to grow 40cm to 70cm per year.

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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Phone: (03) 7042 3318

About Your New Allocasuarina littoralis - Black She Oak

Allocasuarina littoralis, the Black She Oak, is an upright native tree with fine, dark green branchlets that hang in soft weeping sprays. Dark furrowed bark sits beneath a narrow, open canopy. Female trees carry small red flowers in winter, followed by short woody cones that hold on the branches for months.

It handles full sun, poor sandy soil, salt wind and long dry spells, and copes with light to moderate frost once established. Growth runs around 40 to 70 centimetres a year. It grows through temperate and subtropical eastern Australia, and root nodules fix nitrogen, so extra feeding is rarely needed.

It is planted for windbreaks, screening, erosion control and revegetation, and as an avenue tree at about 3 metre spacing. Glossy black cockatoos feed on the cones. On rural blocks and council work it gives structure and habitat value with very little ongoing input.

Frequently Asked Questions

About Black She Oak

How big does Black She Oak grow?

Mature height is 5 to 8 metres with a spread of 3 to 5 metres, giving a fairly narrow upright shape. That makes it useful on suburban blocks where a taller native is wanted without a wide canopy. In exposed coastal or windy sites it often settles at the lower end of that range.

How fast does it grow?

It adds roughly 40 to 70 centimetres a year once the roots are away, which is moderate to quick for a native tree of this size. Growth is fastest in the first few years with regular water through the first two summers. On dry, shallow or very exposed sites it slows noticeably.

How far apart should I plant it for a screen?

For a dense informal screen, plant 1 to 1.5 metres apart. For a tighter formal hedge, 80 centimetres apart works well. For an avenue with a uniform soft-textured line, allow 3 metres between trees. Closer spacing fills in sooner but the trees stay narrower, so match the spacing to the height you want.

Is it drought tolerant?

Yes. Once established it holds up through long dry periods, which is why it is used on rural blocks and in revegetation work. The fine branchlets lose little moisture and the deep root system finds water well below the surface. Water through the first two summers to build that root system.

Is it suitable for coastal positions?

Yes. It occurs naturally in coastal country along the east coast and tolerates salt wind and sandy soil. Plant it behind the primary dune rather than in front of it, where constant salt spray would burn the branchlets. It works well as a first line windbreak for more tender plants further inland.

When does it flower?

Trees are either male or female. Female trees produce small red flowers through winter, followed by short woody cones that stay on the branches for months and feed glossy black cockatoos. Male trees carry rusty brown flower spikes at the branchlet tips. Seedling trees cannot be sexed until they first flower.

How do I care for Black She Oak?

Very little is needed. Water through the first two summers, mulch clear of the trunk and stake only on exposed sites. Skip the fertiliser, since root nodules supply their own nitrogen and phosphorus rich feeds can harm it. Remove lower limbs if you want a clear trunk, otherwise leave the tree alone.

Enriched Planting Mix (AO Certified)

$21.95

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.

View full details

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Enriched Planting Mix (AO Certified)

$21.95

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Uses in my Garden

Screening or Privacy
Rural Property Planting
Shade Tree
Revegetation or Regeneration
Council or Civic Landscapes

Allocasuarina littoralis - Black She Oak works in an:

Australian Native Garden – celebrates local plants with natural character.
Coastal Garden – relaxed, seaside feel with hardy, textural plants.
Woodland Garden – layered, naturalistic design under dappled light.
Low-maintenance Garden – resilient choices for easy care and year-round appeal.

Is Allocasuarina littoralis - Black She Oak Evergreen or Deciduous?

Allocasuarina littoralis - Black She Oak is an Evergreen (foliage year round) Tree

Mature Height & Width

Mature Height: 5m to 8m

Mature Width: 3m to 5m

Allocasuarina littoralis - Black She Oak is expected to grow 40cm to 70cm per year.

Growth Rate of Allocasuarina littoralis - Black She Oak

Allocasuarina littoralis - Black She Oak is expected to grow 40cm to 70cm per year.

They are considered to have a:

Medium Growth Rate

Frost Tolerance & Ideal Climate to plant Allocasuarina littoralis - Black She Oak

Is Allocasuarina littoralis - Black She Oak frost tolerant?

Allocasuarina littoralis - Black She Oak is Frost Tolerant – Can handle light to moderate frost once established.

Does Allocasuarina littoralis - Black She Oak Flower?

Allocasuarina littoralis produces small, understated red to rust-coloured flowers from late winter into spring. While subtle, the blooms form along the fine needle-like branchlets, adding a gentle seasonal highlight before maturing into woody cone-like fruit.

Does Allocasuarina littoralis - Black She Oak flower?

Yes - Flowers

Flowering Period:

Winter

Flower Type:

Not Applicable

Flower Colour:

Red

Is Allocasuarina littoralis - Black She Oak an Australian Native Tree?

Yes

Allocasuarina littoralis - Black She Oak is Native to Native to eastern and southern Australia, from Queensland to Tasmania, where it grows in dry forests, sandy soils, and coastal regions.

What is the Wildlife Value of Allocasuarina littoralis - Black She Oak ?

Its dense, fine-textured branchlets offer shelter for small birds, while its seed cones provide food for native parrots, cockatoos and seed-eating birds. The flowers also support native bees and beneficial insects, helping to build a healthy, biodiverse ecosystem.

How much Sunlight does Allocasuarina littoralis - Black She Oak need?

Allocasuarina littoralis - Black She Oak will thrive best in:

Full Sun
Part Shade

Preferred Soil?

Allocasuarina littoralis performs best in well-drained sandy or loam soils and tolerates slightly acidic to slightly alkaline conditions. It struggles in heavy clay or waterlogged sites unless improved with organic matter and coarse material to enhance drainage. Keep soil evenly moist during establishment, then reduce watering as the tree matures and shows its characteristic high drought resilience.

Is Allocasuarina littoralis - Black She Oak Drought Tolerant?

Is Allocasuarina littoralis - Black She Oak Drought tolerant?

As a young tree it benefits from regular watering, but once established Allocasuarina littoralis displays excellent drought tolerance. It thrives in dry, sandy and coastal environments and remains resilient with minimal supplementary watering.

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How To Plant Your Allocasuarina littoralis - Black She 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 Allocasuarina littoralis - Black She Oak

Hedging and screening: 1 to 1.5 metres apart for a dense informal screen, or 80 centimetres apart for a tighter formal hedge.

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

Allocasuarina littoralis - Black She Oak is expected to grow 40cm to 70cm per year.

Medium Growth Rate

Long Term Care For Your Allocasuarina littoralis - Black She Oak

Watering: Water deeply twice weekly through the first 12 months. Once established, this is drought tolerant and only needs a deep soak during extended dry periods.

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

Pruning: Tip prune in late winter and again in summer to build dense growth. For a formal hedge, light shaping two to three times a year keeps lines crisp.

Fertilising: Apply a slow-release native blend in early spring and again in autumn. Avoid high-phosphorus formulations as a precaution.

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

Planting Your Allocasuarina littoralis - Black She Oak in Different Soil

Allocasuarina littoralis performs best in well-drained sandy loam or 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.

Frequently Asked Questions

What is Allocasuarina littoralis best used for?
A. It’s commonly planted as a windbreak, for screening, and for soil improvement due to its nitrogen-fixing ability.

Q. How tall and wide does it grow?
A. Grows 5 – 8 m tall and 3 – 5 m wide, with a soft, weeping canopy.

Q. Does it flower?
A. Female trees produce small red flowers in winter, though flowers are not showy.

Q. Is it drought tolerant?
A. Yes — it's highly drought hardy once established.

Q. Does it handle coastal and poor soil conditions?
A. Absolutely. It tolerates coastal exposure, poor soils, and helps prevent erosion.

Q. What kind of pruning does it need?
A. Very low maintenance — just light shaping if desired.

Q. What light is best?
A. Full sun to part shade is ideal for healthy growth.

Q. What are its ecological benefits?
A. It fixes nitrogen, supports soil health, and contributes to native biodiversity.