shrub

Cut-leaf Banksia

The Story

Plant Bio

Banksia praemorsa, the cut-leaf banksia, is an erect, woody evergreen shrub native to the south coast of Western Australia, where it grows in sandy or gravelly coastal scrub. The stiff, alternate leaves are wedge-shaped and feature shallow, forward-pointing teeth that give the foliage a distinctive bitten-off appearance.

This species produces dense, cylindrical flower spikes in winter and spring, ranging in colour from rich yellow to deep wine-red with contrasting styles. It is notable for displaying significantly better tolerance to humid summer conditions than most other Western Australian banksias.

Uses & Benefits:

Produces large, contrasting flower spikes and highly textured, tooth-edged foliage that provides year-round structural interest.

Acts as an effective windbreak and privacy screen in coastal areas due to its dense growth habit and salt tolerance.

Provides a rich source of nectar for native honeyeaters and insects during the winter and spring flowering seasons.

Essentials

At a Glance

Plant Type

Shrub

Height

157 inches

Width

118 inches

Light

Full Sun, Partial Sun

Zones

9, 10

Water

Low

Humidity

Moderate

Lifespan

Long-lived

Native To

Western Australia

Toxicity

Non-toxic

Bloom period

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 drainage, such as a raised garden bed or a sandy slope.
Dig a hole twice as wide as the root ball but of equal depth, ensuring the plant sits level with the surrounding soil.
Backfill with native soil, avoiding any organic soil conditioners or standard fertilisers that contain phosphorus.
Water in thoroughly to settle the soil, then apply a coarse, organic mulch keeping it clear of the main stem.

Pro Tip

Never cut back into old, leafless wood; this species lacks a lignotuber and cannot regenerate from bare branches, meaning hard pruning will kill the plant.

Keep It Thriving

Care Guide

Do

Plant in highly permeable, sandy or gravelly soils to prevent root rot.
Use only low-phosphorus fertilisers formulated specifically for Australian native plants.
Prune lightly after flowering to maintain a dense, bushy habit.

Don't

Do not prune into bare, brown wood as the plant lacks a lignotuber and will not reshoot.
Do not allow water to pool around the root zone or plant in heavy clay soils.
Do not apply standard garden fertilisers containing high levels of phosphorus.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

ScreeningCoastal gardensWindbreaksWildlife gardens

Companion Plants

Anigozanthos flavidus Correa alba Westringia fruticosa

Multiply

Propagation Methods

Good to Know

Common Questions

Cut-leaf Banksia questions

What zones can Cut-leaf Banksia grow in?

Cut-leaf Banksia 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 Cut-leaf Banksia bloom?

Cut-leaf Banksia 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 Cut-leaf Banksia need full sun?

Cut-leaf Banksia does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Cut-leaf Banksia drought tolerant?

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