shrub

Sydney Golden Wattle

Acacia longifolia

The Story

Plant Bio

Acacia longifolia, commonly known as the Sydney golden wattle, is a fast-growing evergreen shrub or small tree native to southeastern Australia. It features leathery, strap-like phyllodes rather than true leaves, which support dense cylindrical spikes of bright yellow flowers from winter into early spring.

This species is highly adapted to coastal environments, demonstrating excellent tolerance to salt spray, sandy soils, and strong winds. It serves as an effective windbreak or soil stabilizer but can become highly invasive in Mediterranean climates outside its native range, particularly in California.

Uses & Benefits:

Produces a profuse display of bright yellow cylindrical flower spikes against leathery, evergreen foliage.

Excellent for erosion control on sandy slopes and serves as an effective windbreak in exposed coastal sites.

Fixes atmospheric nitrogen to enrich poor soils and provides pollen for generalist bees and beneficial insects.

Essentials

At a Glance

Plant Type

Shrub

Height

354"

Width

236"

Light

Full Sun, Partial Sun

Zones

9, 10

Water

Low

Humidity

Moderate

Lifespan

Short-lived

Native To

Australia

Toxicity

Non-toxic

Bloom period

Winter – Spring

In flower about 6 months of the year

Planting

How to Grow

Plant in a full sun location with highly permeable, sandy or gravelly soil.
Water deeply but infrequently during the first growing season to establish a deep root system.
Refrain from applying high-phosphorus or heavy nitrogen fertilizers, as this species fixes its own nitrogen.
Prune lightly after the spring bloom to shape the canopy and prevent the center from becoming woody.

Pro Tip

Prune lightly immediately after flowering to maintain a bushy habit; cutting back into old, leafless wood prevents regeneration and leaves permanent bare patches.

Keep It Thriving

Care Guide

Do

Plant in well-draining, sandy or loamy soils to prevent root rot.
Provide full sun to maximize flowering and maintain a dense growth habit.
Prune immediately after flowering to encourage fresh vegetative growth.

Don't

Do not plant in heavy, waterlogged clay soils.
Do not cut back into old, leafless wood, as it will not regenerate.
Do not apply heavy commercial fertilizers, especially those high in phosphorus.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Coastal windbreakSoil stabilizationHedgeScreening

Companion Plants

Salvia apiana Westringia fruticosa Eschscholzia californica

Multiply

Propagation Methods

Good to Know

Common Questions

Sydney Golden Wattle questions

What zones can Sydney Golden Wattle grow in?

Sydney Golden 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.

Is Sydney Golden Wattle deer resistant?

Not reliably. Deer may browse Sydney Golden Wattle, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Sydney Golden Wattle bloom?

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

Does Sydney Golden Wattle need full sun?

Sydney Golden Wattle does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Sydney Golden Wattle drought tolerant?

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