shrub

Queensland Silver Wattle, Mount Morgan Wattle, Pearl Wattle

Acacia podalyriifolia

The Story

Plant Bio

Acacia podalyriifolia, commonly known as Queensland silver wattle, is a fast-growing evergreen woody species native to open forests and rocky hillsides of northeastern Australia. It develops an open, spreading canopy that reaches up to eight metres in height, carrying modified leaf stems rather than true leaves.

This species is distinguished by its rounded, silvery-blue phyllodes which are covered in a soft, felt-like pubescence that reflects intense sunlight. In late winter, it produces a heavy display of bright golden-yellow, ball-shaped flower heads arranged in dense clusters at the branch tips.

Uses & Benefits:

Provides striking silvery-blue foliage year-round and bright golden flowers in late winter.

Acts as a fast-growing screen or windbreak in dry, coastal, or subtropical gardens.

Attracts native bees, wasps, and insectivorous birds like honeyeaters and rosellas.

Essentials

At a Glance

Plant Type

Shrub

Height

315 inches

Width

197 inches

Light

Full Sun

Zones

9, 10

Water

Low

Humidity

High to low

Lifespan

8-15 years

Native To

Australia

Toxicity

Non-toxic

Bloom period

Late winter – Early spring

In flower about 2 months of the year

Planting

How to Grow

Select a planting site in full sun with excellent soil drainage.
Dig a hole twice as wide as the root ball and of equal depth.
Backfill with native soil without adding heavy fertilisers or organic matter.
Water deeply to settle the soil and apply a light layer of mulch, keeping it clear of the trunk.

Pro Tip

Prune lightly immediately after the spring flowering finishes; cutting back into old, leafless grey wood will kill the plant because it lacks epicormic buds to regenerate.

Keep It Thriving

Care Guide

Do

Plant in a position that receives full sun all day.
Ensure the soil has excellent drainage to prevent root rot.
Tip-prune the plant annually from a young age to maintain a bushy habit.

Don't

Do not prune hard into old, leafless grey wood.
Do not apply heavy doses of high-phosphorus fertilisers.
Do not plant near natural bushland or reserves where it can become invasive.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Specimen plantingScreening and windbreaksRevegetation of dry, rocky slopes

Companion Plants

Westringia fruticosa Grevillea lanigera Anigozanthos flavidus

Multiply

Propagation Methods

Good to Know

Common Questions

Queensland Silver Wattle, Mount Morgan Wattle, Pearl Wattle questions

What zones can Queensland Silver Wattle, Mount Morgan Wattle, Pearl Wattle grow in?

Queensland Silver Wattle, Mount Morgan Wattle, Pearl Wattle 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 Queensland Silver Wattle, Mount Morgan Wattle, Pearl Wattle bloom?

Queensland Silver Wattle, Mount Morgan Wattle, Pearl Wattle typically blooms in late winter through early spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Queensland Silver Wattle, Mount Morgan Wattle, Pearl Wattle need full sun?

Queensland Silver Wattle, Mount Morgan Wattle, Pearl Wattle does best in full sun (6+ hours).

Is Queensland Silver Wattle, Mount Morgan Wattle, Pearl Wattle drought tolerant?

Yes — once established (usually after the first full season), Queensland Silver Wattle, Mount Morgan Wattle, Pearl Wattle handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.