tree

Illawarra plum

The Story

Plant Bio

Podocarpus elatus, the Illawarra plum, is an evergreen Australian conifer that grows as a dense, symmetrical column when young before maturing into a broad, spreading tree with a soft, cloud-like canopy. The dark green, linear leaves feature a single prominent midvein and contrast with the lighter green of new seasonal growth.

This dioecious species produces separate male and female reproductive structures in spring, with female plants developing a swollen, edible, purple-black fleshy receptacle beneath the seed by autumn. It exhibits high tolerance to salt spray and coastal winds, making it a reliable windbreak or specimen tree in seaside gardens.

Uses & Benefits:

Provides a dense, glossy green screen or a soft, cloud-like specimen canopy that responds well to pruning and shaping.

Highly tolerant of salt spray and coastal conditions, making it an excellent windbreak or street tree in seaside environments.

The fleshy purple receptacles provide a valuable food source for native fruit-eating birds like currawongs and pigeons.

Essentials

At a Glance

Plant Type

Tree

Height

360 inches

Width

180 inches

Light

Full Sun, Partial Sun

Zones

9, 10

Water

Moderate

Humidity

High

Lifespan

Long-lived

Native To

Eastern Australia

Toxicity

Seed is toxic; fleshy receptacle is edible

Bloom period

Spring

In flower about 1 month of the year

Planting

How to Grow

Select a site in full sun to partial shade with moist, fertile, well-drained soil.
Dig a hole twice the width of the root ball and plant at the same depth as the nursery container.
Water deeply and regularly during the first two seasons to establish a deep root system.
Apply a thick layer of organic mulch around the base, keeping it clear of the trunk to prevent rot.
Protect young plants from heavy frosts using temporary covers until they are established.

Pro Tip

Plant multiple specimens in close proximity to guarantee cross-pollination, as individual nursery plants are unsexed and a single female tree will not produce the edible purple receptacles without a nearby male.

Keep It Thriving

Care Guide

Do

Water regularly during dry spells to maintain consistent soil moisture and support fruit development.
Plant multiple trees nearby to ensure pollination between male and female specimens.
Apply a balanced, slow-release organic fertiliser in spring if soil fertility is low.
Prune lightly after the main growth flush to maintain a desired hedge shape.

Don't

Do not prune aggressively into old, leafless wood as it does not readily reshoot from bare timber.
Do not allow the soil to dry out completely for extended periods, especially during fruit set.
Do not eat the hard seed attached to the end of the edible purple receptacle.
Do not plant a single isolated tree if you expect to harvest the edible fruit.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

HedgeSpecimen TreeWindbreakCoastal GardenStreet TreeBonsai

Companion Plants

Syzygium smithii Doryanthes excelsa Ficus coronata

Multiply

Propagation Methods

Good to Know

Common Questions

Illawarra plum questions

What zones can Illawarra plum grow in?

Illawarra plum 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 Illawarra plum bloom?

Illawarra plum typically blooms in spring through spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Illawarra plum need full sun?

Illawarra plum does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.