Species

Banksia spinulosaHairpin Banksia

2 other cultivars

shrub

Birthday Candles, Dwarf Hairpin Banksia

Banksia spinulosa 'Birthday Candles'

The Story

Plant Bio

Banksia spinulosa, the hairpin banksia, is a woody evergreen shrub native to the open forests and coastal heaths of eastern Australia. The species is characterised by narrow, linear leaves and upright, cylindrical flower spikes that produce abundant nectar throughout the cooler months.

'Birthday Candles' is a dense, low-growing cultivar that forms a compact mound reaching up to 60 centimetres tall and 150 centimetres wide. It features golden-yellow flower cones with contrasting reddish-purple styles held prominently above light green new growth.

Uses & Benefits:

Provides structural interest with upright golden-yellow flower cones and dense, mounding evergreen foliage.

Functions as an effective low-maintenance groundcover or border plant for coastal and drought-prone gardens.

Provides a critical source of nectar for honeyeaters, native bees, and beneficial insects during autumn and winter.

SpeciesBanksia spinulosaHairpin Banksia

Essentials

At a Glance

Plant Type

Shrub

Height

24 inches

Width

60 inches

Light

Full Sun, Partial Sun

Zones

9, 10

Water

Low

Humidity

Moderate

Lifespan

Long-lived

Native To

Australia

Toxicity

Non-toxic

Bloom period

Autumn – Spring

In flower about 7 months of the year

Planting

How to Grow

Select a site in full sun to light shade with excellent drainage, such as a sandy loam or a raised garden bed.
Dig a hole twice the width of the root ball but of equal depth, ensuring the plant sits level with the surrounding soil.
Backfill with native soil, firm down gently, and water in thoroughly to settle the soil around the roots.
Apply a coarse, organic mulch around the base, keeping it clear of the main stem to prevent collar rot.

Pro Tip

Prune spent flower cones immediately below the old inflorescence; cutting back into bare, leafless wood prevents new growth from shooting.

Keep It Thriving

Care Guide

Do

Water regularly during the first summer until the root system is fully established.
Use only slow-release fertilisers formulated specifically for phosphorus-sensitive native plants.
Prune spent flower spikes annually to maintain a dense, compact habit.

Don't

Do not plant in heavy clay soils without raising the garden bed or mounding the soil.
Do not prune hard into old, bare wood, as the plant lacks epicormic buds to regenerate.
Do not apply standard, high-phosphorus garden fertilisers.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Rock gardensCoastal gardensLow bordersContainer plantingMass planting

Companion Plants

Anigozanthos flavidus Correa reflexa Grevillea 'Lanigera'Lomandra longifolia

Multiply

Propagation Methods

Good to Know

Common Questions

Birthday Candles, Dwarf Hairpin Banksia questions

What zones can Birthday Candles, Dwarf Hairpin Banksia grow in?

Birthday Candles, Dwarf Hairpin 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 Birthday Candles, Dwarf Hairpin Banksia bloom?

Birthday Candles, Dwarf Hairpin Banksia typically blooms in autumn through spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Birthday Candles, Dwarf Hairpin Banksia need full sun?

Birthday Candles, Dwarf Hairpin Banksia does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Birthday Candles, Dwarf Hairpin Banksia drought tolerant?

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