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Port Jackson mallee

Eucalyptus obstans

Port Jackson mallee
Photo: Poyt448 Peter Woodard, Public domain

Eucalyptus obstans, the Port Jackson mallee, is a multi-stemmed mallee of south-eastern Australia that grows to about 4 metres and is found on poor, shallow sandstone soils. Grow it in full sun in free-draining, lean soil.

Family
Myrtaceae (Myrtle family)
Grows as
Tree
Light
Full sun
Water
Water regularly while young, then allow the soil to dry between waterings; established plants tolerate dry spells.
Soil
Poor, well-drained sandy or gritty soil; sandstone-derived soils suit it best.
Temperature
Hardy in mild to warm temperate and subtropical climates; tolerates light frost once established.
How easy
Easy
Native range
CE. New South Wales
Climate
subtropical

About

Eucalyptus obstans, commonly known as the Port Jackson mallee, is a common eucalyptus of south eastern Australia. It grows as a multi-stemmed mallee reaching 4 metres in height.

The bark is smooth, grey or greenish. It grows on poor shallow sandstone soils from Ku-ring-gai Chase National Park to Jervis Bay.

Other Eucalyptus plants

Eucalyptus abdita · Badgingarra Box · Wattle Leaved Peppermint · Powder Bark Wandoo · Woolbernup Mallee · White-mahogany · Lakefield Coolibah · Wellstead Mallee · Eucalyptus aenea · Welcome Hill Gum · Blue-leaf stringybark · Black Gum

Text excerpted from the Wikipedia article Eucalyptus obstans by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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