Species

Acacia cognataBower Wattle

2 other cultivars

shrub

River Wattle

Acacia cognata 'Fettuccini'

The Story

Plant Bio

Acacia cognata, commonly known as river wattle, is an evergreen Australian shrub characterized by a weeping habit and narrow, pendulous foliage. The species naturally inhabits moist forest margins and riverbanks, thriving in well-drained, slightly acidic soils.

'Fettuccini' is a compact, mounding cultivar distinguished by its extremely wavy, lime-green new foliage that matures to a rich forest green. It forms a dense, cascading dome reaching up to twenty inches high and three feet wide, producing pale yellow globular flower clusters in late winter and spring.

Uses & Benefits:

Provides a striking architectural form with its weeping, cascading habit and vibrant lime-green foliage.

Functions as an effective low-maintenance groundcover for erosion control on sloped sites.

Offers shelter and nesting sites for small birds and beneficial insects.

SpeciesAcacia cognataBower Wattle

Essentials

At a Glance

Plant Type

Shrub

Height

20"

Width

36"

Light

Full Sun, Partial Sun

Zones

9, 10

Water

Low to moderate

Humidity

Moderate

Lifespan

Multi-year

Native To

Australia

Toxicity

Non-toxic

Bloom period

Late winter – Spring

In flower about 4 months of the year

Planting

How to Grow

Select a planting site in full sun to partial shade with excellent soil drainage.
Dig a hole twice as wide as the root ball but no deeper, ensuring the plant sits level with the surrounding soil.
Backfill with native soil without adding organic compost, which can retain excessive moisture.
Water deeply to settle the soil, then apply a coarse woodchip mulch, keeping it clear of the main stem.

Pro Tip

Plant in highly permeable soil as waterlogged roots quickly trigger root rot; prune only the soft outer foliage after flowering, as cutting back into old, leafless wood prevents regeneration.

Keep It Thriving

Care Guide

Do

Ensure the planting site has excellent drainage to prevent root rot.
Prune lightly immediately after spring flowering to maintain a dense habit.
Use a low-phosphorus fertilizer to avoid root toxicity.

Don't

Do not plant in heavy, waterlogged clay soils.
Do not cut back into old, bare wood when pruning.
Do not overwater once the root system is established.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

GroundcoverBorder EdgingRock GardenContainer Planting

Companion Plants

Salvia Ceanothus Lomandra

Multiply

Propagation Methods

Good to Know

Common Questions

River Wattle questions

What zones can River Wattle grow in?

River 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 River Wattle bloom?

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

Does River Wattle need full sun?

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

Is River Wattle drought tolerant?

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