Eucalyptus robusta 'Matong' - Evergreen Trees Direct

Eucalyptus robusta 'Matong'

$280.00

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Size: 40cm/45L

40cm/45L

Current Stock Height Guides

40cm/45L: Enquire within for height guide information.

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: 8m to 15m (approx.)

Mature Width: 10m to 15m

Eucalyptus robusta 'Matong' is expected to grow 1m to 1.5m 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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Email: sales@evergreentrees.com.au

Phone: (03) 7042 3318

About Your New Eucalyptus robusta 'Matong'

Eucalyptus robusta 'Matong' is a selected form of swamp mahogany, a large Australian native with broad, glossy dark green leaves and thick, fibrous red brown bark. Clusters of creamy white flowers open from late winter into spring and draw honeyeaters, lorikeets and flying foxes. The habit is upright with a dense canopy.

It is one of the few gums that thrives in wet, heavy or periodically waterlogged ground, and it also handles salt laden coastal wind. Give it full sun. Growth is roughly 1 to 1.5 metres a year, with light to moderate frost tolerance once established. Warm temperate and subtropical coastal districts suit it best.

Reaching 20 to 30 metres with a canopy of 10 to 15 metres, it belongs on rural properties, in parks, along wide road reserves and in habitat and revegetation projects, particularly on damp sites. Space avenue plantings 3 metres apart and specimens 3 to 4 metres. Where poor drainage defeats other trees, this one keeps going.

Frequently Asked Questions

About Matong Swamp Mahogany

What is Eucalyptus robusta 'Matong'?

It is a form of swamp mahogany, a large Australian native evergreen with broad glossy leaves and thick, fibrous red brown bark. Creamy white flower clusters open from late winter into spring and are heavily used by honeyeaters, lorikeets and flying foxes. The habit is upright with a dense, spreading canopy.

How big does Swamp Mahogany grow?

It is a large tree, reaching 20 to 30 metres tall with a canopy 10 to 15 metres across on a good site. On drier or shallower ground it will finish lower. Give it space away from buildings, boundaries and services, and think of it as a paddock, park or wide verge tree.

Does it tolerate wet or waterlogged soil?

Yes, better than almost any other eucalypt. It grows naturally on swampy coastal flats and copes with heavy soil, seasonal inundation and a high water table. That makes it a first choice for damp corners, dam surrounds, drainage swales and wet revegetation sites where other trees sit still or die out.

Is it suitable for coastal planting?

It is. Swamp mahogany handles salt laden wind and sandy coastal soils, and it is widely used in shelter planting behind the front dune. It will not take direct salt spray on an exposed headland, but a row or two back from the front line it establishes quickly and shelters everything behind it.

When does it flower?

From late winter into spring, roughly July to October, with clusters of creamy white nectar rich flowers. The timing matters ecologically because it fills a winter gap when little else is in flower, which is why the species is treated as important habitat for gliders, flying foxes and nectar feeding birds.

How fast does it grow?

Roughly 1 to 1.5 metres a year while young, and faster again on moist, fertile ground. That speed is the main reason it is used for shelterbelts and rehabilitation work. Set avenue plantings 3 metres apart and specimen trees 3 to 4 metres apart, and expect useful canopy within four or five years.

How do I care for Matong Swamp Mahogany?

Water through the first two summers unless the site is naturally damp, and mulch out to the drip line. Stake only if the position is windy, and remove the ties within a year. Prune in late winter to take out double leaders and lift the crown. A native fertiliser in spring suits young trees.

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

Type: Garden Supplies

Enriched Planting Mix (AO Certified)

$21.95

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Uses in my Garden

Avenue Planting
Council or Civic Landscapes
Rural Property Planting
Revegetation or Regeneration
Shade Tree

Eucalyptus robusta 'Matong' works in an:

Australian Native Garden – celebrates local plants with natural character.
Woodland Garden – layered, naturalistic design under dappled light.
Wildlife Garden – planting to attract birds, bees, and pollinators.
Low-maintenance Garden – resilient choices for easy care and year-round appeal.

Is Eucalyptus robusta 'Matong' Evergreen or Deciduous?

Eucalyptus robusta 'Matong' is an Evergreen (foliage year round) Tree

Mature Height & Width

Mature Height: 8m to 15m (approx.)

Mature Width: 10m to 15m

Eucalyptus robusta 'Matong' is expected to grow 1m to 1.5m per year (approx.).

Growth Rate of Eucalyptus robusta 'Matong'

Eucalyptus robusta 'Matong' is expected to grow 1m to 1.5m per year (approx.).

They are considered to have a:

Fast Growth Rate

Frost Tolerance & Ideal Climate to plant Eucalyptus robusta 'Matong'

Is Eucalyptus robusta 'Matong' frost tolerant?

Eucalyptus robusta 'Matong' is Frost Tolerant – Can handle light to moderate frost once established.

Does Eucalyptus robusta 'Matong' Flower?

Eucalyptus robusta ‘Matong’ produces clusters of creamy-white fluffy flowers from winter into early spring. These nectar-rich blooms sit along the branchlets and provide a soft seasonal highlight that contrasts with its dark green foliage and rugged, fibrous bark.

Does Eucalyptus robusta 'Matong' flower?

Yes - Flowers

Flowering Period:

Winter
Spring

Flower Type:

Clustered

Flower Colour:

Cream

Is Eucalyptus robusta 'Matong' an Australian Native Tree?

Yes

Eucalyptus robusta 'Matong' is Native to A selected cultivar of Eucalyptus robusta (Swamp Mahogany), which is native to eastern Australia, from southern Sydney through coastal New South Wales into Queensland, where it grows naturally in swamps, floodplains, and wet coastal forests.

What is the Wildlife Value of Eucalyptus robusta 'Matong' ?

Its winter–spring flowers attract honeyeaters, native bees, butterflies and early-season pollinators, while the dense evergreen canopy provides excellent shelter and nesting habitat for small birds. The thick, fibrous bark supports insects and microfauna that significantly boost biodiversity in wet or coastal native gardens.

How much Sunlight does Eucalyptus robusta 'Matong' need?

Eucalyptus robusta 'Matong' will thrive best in:

Full Sun

Preferred Soil?

Eucalyptus robusta ‘Matong’ performs best in moist, well-drained loam or sandy loam soils and prefers slightly acidic to neutral conditions. Naturally adapted to wetter environments, it may struggle in very dry, compacted, or poorly drained clay unless improved with organic matter to enhance both structure and moisture retention. Keep soil consistently moist during establishment, then maintain deep, reliable watering as it matures to support healthy canopy development, flowering performance and long-term resilience.

Is Eucalyptus robusta 'Matong' Drought Tolerant?

Is Eucalyptus robusta 'Matong' Drought tolerant?

As a young tree it requires regular watering, and once established ‘Matong’ develops moderate drought tolerance. Naturally suited to moist and coastal conditions, it performs best with deep, occasional watering during extended dry periods to maintain canopy health and steady growth.

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How To Plant Your Eucalyptus robusta 'Matong'

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 Eucalyptus robusta 'Matong'

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.

Eucalyptus robusta 'Matong' is expected to grow 1m to 1.5m per year (approx.).

Fast Growth Rate

Long Term Care For Your Eucalyptus robusta 'Matong'

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: 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 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 Eucalyptus robusta 'Matong' in Different Soil

Eucalyptus robusta 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

Frequently Asked Questions:

Can it handle salty environments? Yes, 'Matong' is known to tolerate salt spray, making it suitable for coastal regions.
What kind of pests might bother it? While generally hardy, watch out for typical eucalyptus pests like borers or leaf beetles.