tree

Ghost Gum, Central Australian Ghost Gum, Ilwempe

Corymbia aparrerinja

The Story

Plant Bio

Corymbia aparrerinja, the ghost gum, is an evergreen Australian tree reaching up to twenty metres in height, characterised by its smooth, powdery white to pinkish bark that sheds in thin strips. The open, spreading canopy features alternate, lance-shaped adult leaves that are glossy green on both sides and release a characteristic eucalypt aroma.

This species is distinguished by its prominent basal lignotuber and its stark, brilliant white trunk, which contrasts sharply against arid landscapes. In summer, it produces terminal compound clusters of small white flowers from three- or seven-budded structures, followed by woody, cup-shaped fruits.

Uses & Benefits:

Provides a striking architectural silhouette with its brilliant white, powdery trunk and open, weeping canopy.

Acts as an exceptionally drought-tolerant windbreak and shade provider in arid and semi-arid inland landscapes.

Provides essential nesting hollows and nectar sources for native Australian birds, bees, and canopy-dwelling insects.

Essentials

At a Glance

Plant Type

Tree

Height

787 inches

Width

393 inches

Light

Full Sun

Zones

9, 10

Water

Low

Humidity

Low

Lifespan

Long

Native To

Central Australia

Toxicity

Non-toxic

Bloom period

Summer

In flower about 1 month of the year

Planting

How to Grow

Select a planting site in full sun with sandy, stony, or highly permeable loamy soil.
Dig a hole twice the width of the root ball but of equal depth to prevent water pooling around the trunk collar.
Position the plant, backfill with native soil without adding organic soil conditioners, and water in thoroughly to settle the roots.
Establish a minimal watering regime, tapering off completely once the root system penetrates deep into the subsoil.

Pro Tip

Avoid planting in humid coastal zones or heavy clay soils; this species requires baking sun, dry air, and exceptional drainage to prevent fungal root rot.

Keep It Thriving

Care Guide

Do

Ensure the planting site has exceptional drainage to prevent waterlogging.
Prune only when necessary, limiting cuts to young, active branches.
Apply low-phosphorus native fertilisers very sparingly if at all.

Don't

Do not plant in heavy clay or areas prone to standing water.
Never prune back into old, leafless wood as epicormic regrowth is highly unpredictable.
Do not overwater once established, as high soil moisture triggers root rot.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Pest Check
Plant
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Specimen treeArid-zone windbreakShade tree for large inland properties

Companion Plants

Triodia species Acacia aneura Senna artemisioides

Multiply

Propagation Methods

Good to Know

Common Questions

Ghost Gum, Central Australian Ghost Gum, Ilwempe questions

What zones can Ghost Gum, Central Australian Ghost Gum, Ilwempe grow in?

Ghost Gum, Central Australian Ghost Gum, Ilwempe is hardy in USDA Zones 9–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

When does Ghost Gum, Central Australian Ghost Gum, Ilwempe bloom?

Ghost Gum, Central Australian Ghost Gum, Ilwempe typically blooms in summer through summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Ghost Gum, Central Australian Ghost Gum, Ilwempe need full sun?

Ghost Gum, Central Australian Ghost Gum, Ilwempe does best in full sun (6+ hours).

Is Ghost Gum, Central Australian Ghost Gum, Ilwempe drought tolerant?

Yes — once established (usually after the first full season), Ghost Gum, Central Australian Ghost Gum, Ilwempe handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.