shrub

Needlewood

Hakea divaricata

The Story

Plant Bio

Hakea divaricata, known as needlewood, is an upright, lignotuberous Australian shrub or small gnarled tree distinguished by its thick, deeply furrowed, corky bark. The rigid, needle-like compound leaves end in sharp, prickly points, providing a stark contrast to the showy, cream to greenish-yellow flower racemes that emerge from winter to spring.

This arid-land specialist features smooth red branchlets on new growth and produces narrow, woody follicles with curved beaks that house winged seeds. Its corky trunk acts as a protective shield, while its deep-furrowed texture offers high architectural value in dry landscapes.

Uses & Benefits:

The deeply furrowed, dark corky bark and gnarled growth habit provide year-round architectural interest, complemented by showy cream flower racemes.

The extremely sharp, rigid foliage serves as an effective natural barrier or security screen.

Provides a valuable nectar source for visiting generalist birds and insect pollinators when grown in suitable warm climates.

Essentials

At a Glance

Plant Type

Shrub

Height

276"

Width

197"

Light

Full Sun

Zones

9, 10

Water

Low

Humidity

Low

Lifespan

Long-lived

Native To

Australia

Toxicity

Non-toxic (mechanical irritant)

Bloom period

Winter – Spring

In flower about 6 months of the year

Planting

How to Grow

Select a planting site in full sun with exceptional, sharp drainage, such as sandy, stony, or sandstone-derived desert soils.
Ensure the soil pH is acidic to neutral, avoiding any heavy clay or organic-rich soils that retain moisture.
Water sparingly during the establishment phase, then transition to an extremely low-water regime, allowing the soil to dry completely between waterings.
Protect young plants from severe, prolonged freezing temperatures, as they only tolerate light to moderate desert frosts once established.

Pro Tip

Never prune heavily into old, leafless wood, as this species lacks the ability to regenerate from bare branches and relies entirely on its lignotuber or active green-leaf nodes.

Keep It Thriving

Care Guide

Do

Use thick leather gardening gloves when handling the plant to protect skin from the extremely sharp, prickly leaf points.
Provide excellent air circulation and low-humidity conditions to prevent fungal diseases.
Apply a specialized low-phosphorus native plant fertilizer very sparingly if feeding is necessary.

Don't

Do not use standard balanced garden fertilizers containing phosphorus, which causes rapid root toxicity and death.
Do not plant in heavy, waterlogged, or poorly drained soils.
Do not prune into old, bare wood lacking active green leaves.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Specimen plant in arid or desert gardensArchitectural focal point featuring corky barkBarrier planting due to sharp, prickly foliage

Companion Plants

Eremophila Acacia Anigozanthos

Multiply

Propagation Methods

Good to Know

Common Questions

Needlewood questions

What zones can Needlewood grow in?

Needlewood 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.

Is Needlewood deer resistant?

Not reliably. Deer may browse Needlewood, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Needlewood bloom?

Needlewood 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 Needlewood need full sun?

Needlewood does best in full sun (6+ hours).

Is Needlewood drought tolerant?

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