Eucalyptus robusta – Swamp Mahogany

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

Eucalyptus robusta – Swamp Mahogany 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.

Eucalyptus robusta – Swamp Mahogany is an Evergreen (foliage year round) Tree

Mature Height: 15m - 30m Approximately

Mature Width: 8 – 12 meters

Eucalyptus robusta – Swamp Mahogany is expected to grow Approx. 1 – 1.5 m per year.

Eucalyptus robusta – Swamp Mahogany is expected to grow Approx. 1 – 1.5 m per year.

They are considered to have a:

• Fast Growth Rate

Is Eucalyptus robusta – Swamp Mahogany frost tolerant?

Eucalyptus robusta – Swamp Mahogany is Frost Tolerant – Can handle light to moderate frost once established.

• Tropical QLD (Cairns, Townsville)
• Subtropical QLD (Brisbane, Gold Coast, Sunshine Coast)
• Northern NSW (Byron, Coffs, Armidale)
• Sydney & Central Coast
• South Coast NSW (Illawarra to Bega)
• Inland NSW / Tablelands (Orange, Bathurst, Canberra)
• Melbourne & Surrounds (Metro, Bayside, Geelong, Bellarine, Mornington)
• Gippsland (Latrobe Valley, East Gippsland)
• Adelaide Metro & Coastal

Eucalyptus robusta produces clusters of creamy-white fluffy flowers from winter into early spring. These nectar-rich blooms appear along the branchlets and provide a soft but valuable seasonal display that contrasts well with its dark green foliage and thick, fibrous bark.

Does Eucalyptus robusta – Swamp Mahogany flower?

• Yes - Flowers

Flowering Period:

• Winter
• Spring

Flower Type:

• Pollinator-attracting
• Clustered

Flower Colour:

Cream

Yes

Eucalyptus robusta – Swamp Mahogany 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.

Its winter–spring flowering period supplies abundant nectar for honeyeaters, lorikeets, native bees and early-season pollinators. The dense evergreen canopy provides excellent shelter and nesting habitat for small birds, while the rugged bark supports insects and microfauna that enhance biodiversity in wetland and coastal gardens.

Eucalyptus robusta – Swamp Mahogany will thrive best in:

• Full Sun

Eucalyptus robusta performs best in moist, well-drained loam or sandy loam soils and prefers slightly acidic to neutral conditions. Naturally adapted to wetter sites, it may struggle in very dry or compacted clay soils unless improved with organic matter to enhance both drainage and moisture retention. Keep soil consistently moist during establishment, then maintain deep, reliable watering as the tree matures to support healthy growth, winter flowering and long-term resilience.

Is Eucalyptus robusta – Swamp Mahogany Drought tolerant?

As a young tree it requires regular watering, and once established Eucalyptus robusta develops moderate drought tolerance. Naturally adapted to moist, swampy and coastal environments, it performs best with deep, occasional watering during dry periods to maintain strong canopy health and steady growth.