Species

groundcover

Prostrate Coast Banksia

The Story

Plant Bio

Banksia integrifolia, commonly known as coast banksia, is a highly adaptable evergreen woody plant native to eastern Australia that thrives in coastal dunes and sandy soils. It is exceptionally tolerant of salt spray, wind, and poor soils, producing upright, cylindrical yellow flower spikes that provide a critical nectar source for wildlife.

'Roller Coaster' is a vigorous, prostrate selection that forms a dense, cascading mat of arching stems layering upon themselves to suppress weeds and control erosion. Its stiff, leathery leaves feature glossy dark green upper surfaces contrasted by striking silvery-white undersides, and it displays bright lemon-yellow flower brushes from summer through winter.

Uses & Benefits:

Forms a dense, cascading evergreen carpet with contrasting glossy green and silver foliage and upright yellow flower brushes.

Excellent for stabilizing sandy slopes, controlling erosion on embankments, and tolerating harsh coastal salt spray.

Provides a rich nectar source for hummingbirds, bees, and other beneficial pollinators during the cooler months.

SpeciesBanksia integrifoliaCoast Banksia

Essentials

At a Glance

Plant Type

Groundcover

Height

24"

Width

98"

Light

Full Sun, Partial Sun

Zones

8, 9, 10

Water

Low

Humidity

Low to moderate

Lifespan

Perennial

Native To

Australia

Toxicity

Non-toxic

Bloom period

Summer – Winter

In flower about 9 months of the year

Planting

How to Grow

Select a planting site in full sun to light shade with sharp, excellent drainage.
Dig a hole twice as wide as the root ball and of equal depth, backfilling with native soil without adding organic matter.
Install the plant so the crown sits slightly above the surrounding soil level to prevent water pooling around the stem.
Water deeply to settle the soil, then apply a low-phosphorus native fertilizer and a thick layer of coarse mulch.

Pro Tip

Tip-prune only the soft green growth after flowering; cutting back into old, leafless wood prevents the plant from shooting back and leaves permanent bare patches.

Keep It Thriving

Care Guide

Do

Plant in sandy, loamy, or well-drained clay-loam soils.
Use only low-phosphorus fertilizers formulated specifically for native Proteaceae plants.
Provide excellent air circulation to minimize fungal leaf spot issues.

Don't

Do not allow the root zone to sit in wet, boggy, or waterlogged soil.
Do not prune hard into old, bare wood that lacks green leaves.
Do not apply standard garden fertilizers containing high levels of phosphorus.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Erosion ControlGroundcoverCoastal GardensRock GardensEmbankments

Companion Plants

Grevillea Salvia apiana Ceanothus Arctostaphylos

Multiply

Propagation Methods

Good to Know

Common Questions

Prostrate Coast Banksia questions

What zones can Prostrate Coast Banksia grow in?

Prostrate Coast Banksia is hardy in USDA Zones 8–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

When does Prostrate Coast Banksia bloom?

Prostrate Coast Banksia typically blooms in summer through winter. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Prostrate Coast Banksia need full sun?

Prostrate Coast Banksia does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Prostrate Coast Banksia drought tolerant?

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