shrub

Kanuka

Kunzea ericoides

The Story

Plant Bio

Kunzea ericoides, known as kanuka, is an evergreen Australasian shrub or small tree that forms an upright, multi-stemmed canopy of weeping branches and flaky bark. The fine-textured, needle-like foliage is highly aromatic and turns from soft green to deep grey-green, providing a backdrop for a profuse display of small, brush-like white flowers.

This species is distinguished by its extreme drought tolerance once established and its highly aromatic, essential-oil-rich leaves. In late spring and summer, the dense clusters of snow-white blossoms cover the branchlets, attracting a wide range of native bees and beneficial insects.

Uses & Benefits:

Produces a spectacular, snow-like display of white flowers over fine, aromatic, weeping foliage.

Excellent for erosion control on slopes and serves as an effective windbreak in coastal zones.

Provides abundant nectar for native bees, beneficial wasps, and generalist insect pollinators.

Essentials

At a Glance

Plant Type

Shrub

Height

180"

Width

120"

Light

Full Sun

Zones

8, 9, 10

Water

Low

Humidity

Moderate

Lifespan

Long-lived

Native To

New Zealand, Southeastern Australia

Toxicity

Non-toxic

Bloom period

Late spring – Summer

In flower about 4 months of the year

Planting

How to Grow

Select a planting site in full sun with excellent drainage, as saturated soil triggers fatal root rot.
Dig a hole twice as wide as the root ball but no deeper, ensuring the crown sits slightly above the surrounding soil level.
Water deeply and regularly during the first summer to establish a deep root system.
Apply a thin layer of organic mulch around the base, keeping it clear of the main stem to prevent rot.

Pro Tip

Prune lightly immediately after summer flowering to maintain a dense, compact shape; cutting back into old, leafless interior wood will kill the branches as they lack dormant buds to regenerate.

Keep It Thriving

Care Guide

Do

Plant in sandy or gravelly soils to ensure rapid drainage.
Prune the soft, green tip growth annually after flowering to encourage dense branching.
Water deeply but infrequently during extended dry spells once the plant is established.

Don't

Do not prune back into bare, brown wood, as it will not resprout.
Do not plant in low-lying areas or heavy clay soils that retain standing water.
Do not apply high-phosphorus fertilizers, which can cause severe root stress.

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

HedgeScreeningCoastal GardenErosion ControlWindbreak

Companion Plants

Westringia fruticosa Leptospermum scoparium Ceanothus thyrsiflorus

Multiply

Propagation Methods

Good to Know

Common Questions

Kanuka questions

What zones can Kanuka grow in?

Kanuka 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.

Is Kanuka deer resistant?

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

When does Kanuka bloom?

Kanuka typically blooms in late spring through summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Kanuka need full sun?

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

Is Kanuka drought tolerant?

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