shrub

Fern-leaf Banksia, Groundcover Banksia, Prostrate Banksia, Southern Blechnum Banksia

Banksia blechnifolia

The Story

Plant Bio

Banksia blechnifolia is a prostrate, evergreen shrub endemic to the south-west of Western Australia, where it grows in sandy soils within heath and mallee communities. The species is non-lignotuberous and spreads via horizontal, creeping branches that lie flat on the ground.

This species is distinguished by its deeply lobed, leathery leaves that rise vertically to resemble fern fronds, with new growth covered in rusty-brown hairs. Cylindrical flower spikes up to 16 centimetres high emerge directly at ground level, displaying dark pink to reddish-brown perianths that fade to cream at the base.

Uses & Benefits:

Provides a unique ground-hugging habit with deeply lobed, fern-like foliage and ground-level flower spikes.

Functions as an effective, low-maintenance groundcover for stabilizing sandy soils and slopes.

Supports native Australian nectar-feeding birds, honeyeaters, and native insects including bees, wasps, ants, and flies.

Essentials

At a Glance

Plant Type

Shrub

Height

20 inches

Width

157 inches

Light

Full Sun, Partial Sun

Zones

9, 10

Water

Low

Humidity

Low

Lifespan

Perennial

Native To

Western Australia

Toxicity

Non-toxic (foliage is prickly)

Bloom period

Spring

In flower about 1 month of the year

Planting

How to Grow

Plant in a sunny position with exceptionally well-drained sandy soil or light sandy loam.
Dig a hole twice the width of the root ball and plant at the same depth as the nursery pot.
Water moderately during the establishment phase, then reduce watering to a low frequency.
Apply a thin layer of organic mulch to suppress weeds, keeping it clear of the main stem.

Pro Tip

Never prune this species back into old, leafless wood; because it lacks a lignotuber, hard pruning will kill the branch or the entire plant.

Keep It Thriving

Care Guide

Do

Plant in exceptionally well-drained sandy or gravelly soil.
Use only low-phosphorus fertilisers formulated for native plants.
Position in full sun to maximise flowering potential.

Don't

Do not prune back hard into old, bare, woody stems.
Do not allow the roots to sit in stagnant water or heavy, wet clay.
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
Pest Check
Propagate
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Groundcover for sandy banksRock gardensCoastal gardensNative gardens

Companion Plants

Anigozanthos flavidus Grevillea lanigera Adenanthos sericeus

Multiply

Propagation Methods

Good to Know

Common Questions

Fern-leaf Banksia, Groundcover Banksia, Prostrate Banksia, Southern Blechnum Banksia questions

What zones can Fern-leaf Banksia, Groundcover Banksia, Prostrate Banksia, Southern Blechnum Banksia grow in?

Fern-leaf Banksia, Groundcover Banksia, Prostrate Banksia, Southern Blechnum 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 Fern-leaf Banksia, Groundcover Banksia, Prostrate Banksia, Southern Blechnum Banksia bloom?

Fern-leaf Banksia, Groundcover Banksia, Prostrate Banksia, Southern Blechnum Banksia 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 Fern-leaf Banksia, Groundcover Banksia, Prostrate Banksia, Southern Blechnum Banksia need full sun?

Fern-leaf Banksia, Groundcover Banksia, Prostrate Banksia, Southern Blechnum Banksia does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Fern-leaf Banksia, Groundcover Banksia, Prostrate Banksia, Southern Blechnum Banksia drought tolerant?

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