Eucalyptus alpina

RHS Plant Profile

Grampians gum

Shrubs Trees

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Multi-stemmed evergreen shrub or small tree, endemic to the Grampians National Park, Victoria, about 2-4m tall as a shrub or taller as a tree, with fibrous grey bark on the lower trunk, smooth greyish bark above. Broadly-rounded, dark green juvenile leaves mature to lance-shaped. White flowers in clusters of 3-7 flowers, appear from early summer to mid autumn. Very warty buds and fruit capsules

Position

Full sun

Soil Types

Loam, Sand

Max Height

2.5-4 metres

Max Spread

2.5-4 metres

Size

Time to Maturity: 5–10 years
Max Spread: 2.5-4 metres
Max Height: 2.5-4 metres

Growing Conditions

Loam Sand

Moisture: Well–drained
pH: Acid or Neutral

Position

Full sun

Aspect: South–facing or West–facing
Exposure: Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H3

Colour & Scent

Fragrance Foliage

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Myrtaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Spreading branched
Genus: Eucalyptus are evergreen trees or large shrubs, often fast-growing, some with attractive bark, most with aromatic foliage, and clusters of small, white, yellow or red flowers
Name Status: Correct

How to Grow

Cultivation

In mild counties and frost-free areas, grow in sharply drained or sandy, neutral to acid soil in full sun with shelter from winds; in frost-prone areas, grow in a cool or temperate greenhouse, in a mix of lime-free potting compost and grit, in full light with good ventilation. Water freely in spring and summer and apply a general fertiliser monthly, water sparingly in winter. See eucalyptus cultivation

Propagation

Propagate by seed at 13-18°C in spring and summer

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Cottage and informal garden
Mediterranean climate plants
Sub-tropical
Conservatory and greenhouse

Pruning

Pruning group 1, or for the best display of juvenile foliage use Pruning group 7. See Eucalyptus: pruning.

Pests

May be susceptible to eucalyptus gall wasp and eucalyptus sucker

Diseases

May be susceptible to silver leaf, oedema and honey fungus