Species

Acacia cognataBower Wattle, River Wattle, Narrow-leaf Bower-wattle, Sticky Wattle

2 other cultivars

shrub

Limelight Wattle, Dwarf River Wattle, Narrow-leaved Bower Wattle 'Limelight'

Acacia cognata 'Limelight'

The Story

Plant Bio

Acacia cognata, native to the riverbanks and moist gullies of southeastern Australia, is a forest-dwelling wattle characterised by its weeping branches and narrow, soft green foliage. The species produces small, pale yellow spherical flower heads in spring, though its primary horticultural value lies in its fine-textured, cascading habit.

'Limelight' is a compact, mound-forming cultivar selected for its dense foliage and vibrant lime-green colour. It forms a highly structural, dome-shaped shrub that reaches up to one metre in height on its own roots, though grafted standard forms are also produced.

Uses & Benefits:

Provides a year-round structural dome of vibrant lime-green foliage with a cascading, weeping habit.

Functions well as a low-maintenance container plant or a structural element in well-draining coastal gardens.

Attracts native bees and beneficial insects to its subtle spring flowers.

SpeciesAcacia cognataBower Wattle, River Wattle, Narrow-leaf Bower-wattle, Sticky Wattle

Essentials

At a Glance

Plant Type

Shrub

Height

39 inches

Width

47 inches

Light

Full Sun, Partial Sun

Zones

9, 10

Water

Low to Moderate

Humidity

Low to Moderate

Lifespan

Medium

Native To

Australia

Toxicity

Non-toxic

Bloom period

Spring

In flower about 1 month of the year

Planting

How to Grow

Select a planting site with excellent drainage, such as a raised bed, slope, or sandy loam soil.
Dig a hole twice the width of the root ball but no deeper, ensuring the plant sits at the same level as the pot soil.
Backfill with native soil, firm gently, and water in thoroughly to settle the soil around the roots.
Apply a thin layer of organic mulch around the base, keeping it clear of the main stem to prevent rot.

Pro Tip

Plant on a slight slope or raised mound to ensure rapid drainage, as waterlogged soil triggers fatal root rot within days.

Keep It Thriving

Care Guide

Do

Plant in full sun to maximise the vibrant lime-green foliage colour.
Use a low-phosphorus native fertiliser sparingly in spring.
Ensure the soil drains rapidly to prevent root rot.

Don't

Do not plant in heavy, waterlogged clay soils.
Do not prune heavily into old, bare wood as it will not regenerate.
Do not use standard garden fertilisers containing high phosphorus levels.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Architectural specimen plantContainer planting for patiosMass planting for textureRock gardensCoastal gardens

Companion Plants

Anigozanthos flavidus Correa reflexa Grevillea 'Superb'Lomandra longifolia

Multiply

Propagation Methods

Good to Know

Common Questions

Limelight Wattle, Dwarf River Wattle, Narrow-leaved Bower Wattle 'Limelight' questions

What zones can Limelight Wattle, Dwarf River Wattle, Narrow-leaved Bower Wattle 'Limelight' grow in?

Limelight Wattle, Dwarf River Wattle, Narrow-leaved Bower Wattle 'Limelight' 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 Limelight Wattle, Dwarf River Wattle, Narrow-leaved Bower Wattle 'Limelight' bloom?

Limelight Wattle, Dwarf River Wattle, Narrow-leaved Bower Wattle 'Limelight' 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 Limelight Wattle, Dwarf River Wattle, Narrow-leaved Bower Wattle 'Limelight' need full sun?

Limelight Wattle, Dwarf River Wattle, Narrow-leaved Bower Wattle 'Limelight' does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Limelight Wattle, Dwarf River Wattle, Narrow-leaved Bower Wattle 'Limelight' drought tolerant?

Yes — once established (usually after the first full season), Limelight Wattle, Dwarf River Wattle, Narrow-leaved Bower Wattle 'Limelight' handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.