Casuarina cunninghamiana - River Sheoak - Evergreen Trees Direct

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Casuarina cunninghamiana - Evergreen Trees Direct

Casuarina cunninghamiana - River Sheoak

$270.00

Tax included. Shipping calculated at checkout.

Size: 40cm/45L

30cm/33cm 40cm/45L 100L 200L

Current Stock Height Guides

40cm/45L: 1.2m – 1.6m Approx.
100L: 1.9m – 3.1m 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: 15m to 30m (approx.)

Mature Width: 10m to 15m

Casuarina cunninghamiana - River Sheoak is expected to grow 1m to 2m per year (approx.).

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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Shipping is calculated at checkout based on the pallet space your order occupies in the truck and your delivery location.

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Email: sales@evergreentrees.com.au

Phone: (03) 7042 3318

About Your New Casuarina cunninghamiana - River Sheoak

Casuarina cunninghamiana is the standard tree for holding a riverbank together. Deep binding roots stabilise eroding soil while fine weeping needle-like foliage filters wind rather than blocking it, which reduces the turbulence a solid windbreak creates on the sheltered side.

The River She Oak grows very fast at 1 to 2 metres per year, reaching 15 to 30 metres tall and 10 to 15 metres wide with a tall straight trunk and soft drooping canopy. It is a mainstay of rural shelterbelts, revegetation programs, erosion control and large-scale civic screening.

This Australian native is frost hardy, surviving heavy and frequent frost without damage, and tolerates poor soils, waterlogging, drought and moderate salinity. Like all casuarinas it fixes nitrogen, which improves degraded ground as it grows.

Frequently Asked Questions

About Casuarina cunninghamiana

How big does Casuarina cunninghamiana grow?

The River She Oak reaches 15 to 30 metres tall and 10 to 15 metres wide. It is a large tree for rural properties, riverbanks and parkland rather than suburban gardens.

How fast does River She Oak grow?

Very fast, at 1 to 2 metres per year. It is one of the quickest options for establishing shelter, screening or bank stabilisation.

Why is it used for riverbank stabilisation?

Its deep binding root system holds soil against flowing water, and it tolerates periodic inundation. It is the standard species for erosion control along Australian watercourses.

Does it make a good windbreak?

Yes. The fine needle-like foliage filters wind rather than blocking it, which reduces the turbulence and eddying that occurs behind a solid barrier.

Is Casuarina cunninghamiana frost hardy?

Yes. It is frost hardy and survives heavy and frequent frost without damage, and also tolerates drought, waterlogging and moderate salinity.

Does anything grow underneath it?

The fallen needles form a dense mat that suppresses most understorey growth. This suits low-maintenance shelterbelts but is worth planning around in a garden.

How far apart should I plant it for a windbreak?

Plant 3 to 4 metres apart for a shelterbelt row, or 8 to 10 metres apart where each tree should develop a full canopy.

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.

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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
Windbreak
Revegetation or Regeneration
Council or Civic Landscapes

Casuarina cunninghamiana - River Sheoak works in an:

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

Is Casuarina cunninghamiana - River Sheoak Evergreen or Deciduous?

Casuarina cunninghamiana - River Sheoak is an Evergreen (foliage year round) Tree

Mature Height & Width

Mature Height: 15m to 30m (approx.)

Mature Width: 10m to 15m

Casuarina cunninghamiana - River Sheoak is expected to grow 1m to 2m per year (approx.).

Growth Rate of Casuarina cunninghamiana - River Sheoak

Casuarina cunninghamiana - River Sheoak is expected to grow 1m to 2m per year (approx.).

They are considered to have a:

Fast Growth Rate

Frost Tolerance & Ideal Climate to plant Casuarina cunninghamiana - River Sheoak

Is Casuarina cunninghamiana - River Sheoak frost tolerant?

Casuarina cunninghamiana - River Sheoak is Frost Hardy – Survives heavy and frequent frost without damage.

Does Casuarina cunninghamiana - River Sheoak Flower?

Casuarina cunninghamiana produces small red to rusty-brown flowers from late winter into spring. Though discreet, these blooms sit along the fine, needle-like branchlets and precede the development of its woody cone-like fruit.

Does Casuarina cunninghamiana - River Sheoak flower?

Yes - Flowers

Flowering Period:

Winter
Spring

Flower Type:

Not Applicable

Flower Colour:

Not Applicable

Is Casuarina cunninghamiana - River Sheoak an Australian Native Tree?

Yes

Casuarina cunninghamiana - River Sheoak is Native to Native to eastern and northern Australia, where it grows naturally along rivers, creeks, and floodplains.

What is the Wildlife Value of Casuarina cunninghamiana - River Sheoak ?

Its dense, fine-textured foliage provides excellent shelter and nesting habitat for small birds, while its seed cones are an important food source for native parrots and other seed-eating species. The flowers also support native bees and beneficial insects, contributing to overall garden biodiversity.

How much Sunlight does Casuarina cunninghamiana - River Sheoak need?

Casuarina cunninghamiana - River Sheoak will thrive best in:

Full Sun

Preferred Soil?

Casuarina cunninghamiana performs best in well-drained sandy or loam soils and tolerates slightly acidic to slightly alkaline conditions. It may struggle in heavy clay or waterlogged areas unless improved with organic matter and coarse material to enhance drainage. Keep soil evenly moist during establishment, then shift to deep, occasional watering as it matures and develops its characteristic high drought resilience.

Is Casuarina cunninghamiana - River Sheoak Drought Tolerant?

Is Casuarina cunninghamiana - River Sheoak Drought tolerant?

As a young tree it requires regular watering, but once established Casuarina cunninghamiana develops excellent drought tolerance. It thrives in hot, dry and coastal environments and maintains its strong, upright habit with minimal supplementary watering.

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How To Plant Your Casuarina cunninghamiana - River Sheoak

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 Casuarina cunninghamiana - River Sheoak

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

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.

Casuarina cunninghamiana - River Sheoak is expected to grow 1m to 2m per year (approx.).

Fast Growth Rate

Long Term Care For Your Casuarina cunninghamiana - River Sheoak

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: 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 Casuarina cunninghamiana - River Sheoak in Different Soil

Casuarina cunninghamiana 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

Q: How fast does Casuarina cunninghamiana grow?
A: River Sheoak is a fast-growing tree, typically 1-2 metres per year under good conditions.

Q: Is it suitable for coastal planting?
A: Yes! It thrives in salty, windy environments, making it perfect for coastal landscapes.

Q: Can I use River Sheoak for hedging or screening?
A: Yes, it forms a dense natural barrier when planted in rows, making it an effective privacy screen or windbreak.