White gum (Eucalyptus dalrympleana) is a tall, fast-growing eucalyptus tree from the mountains of southeastern Australia, valued for its smooth white bark and cold hardiness. It needs full sun and some shelter from wind to do well.
Family
Myrtaceae (Myrtle family)
Grows as
Tree
Light
Full sun
Water
Water regularly while young, then reduce to occasional deep watering once established; tolerates dry spells.
Soil
Well-drained soil; tolerates a range of soil types.
Temperature
Fully hardy to -15 °C; prefers some shelter from cold winds.
How easy
Easy
Native range
SE. Queensland to SE. Australia
Climate
subtropical
About
Eucalyptus dalrympleana, commonly known as mountain gum, mountain white gum, white gum and broad-leaved ribbon gum, is a species of tree that is endemic to southeastern Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of three or seven, white flowers and cup-shaped, bell-shaped or hemispherical fruit.
How to grow it
In cultivation in the UK, E. dalrympleana is fully hardy down to −15 °C (5 °F) but prefers some shelter. It grows best in full sun. It has gained the Royal Horticultural Society's Award of Garden Merit.
Where it grows
Mountain gum grows in woodland and forest at higher elevations in far south-eastern Queensland, New South Wales, Victoria, South Australia and Tasmania. Subspecies heptantha is only found in far south-eastern Queensland and on the northern tablelands of New South Wales. Subspecies dalrympleana occurs south from the central and southern tablelands of New South Wales. The species is rare in South Australia where it only occurs in the Mount Lofty Ranges.
Text excerpted from the Wikipedia article Eucalyptus dalrympleana 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.