The Story
Plant Bio
Kunzea baxteri, the scarlet kunzea, is an evergreen woody shrub native to Western Australia that reaches five to ten feet in height, featuring dense, spreading branches clothed in narrow, grey-green leaves. The foliage is alternate and narrow-elliptic, with fine hairs along the margins of the leaf edges.
The species is distinguished by its large, terminal, bottlebrush-like flower clusters up to four inches long, packed with sixteen to thirty deep red flowers. These prominent, long-crimson stamens erupt from the branch tips from spring through summer, attracting local hummingbirds.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Shrub
Height
120"
Width
120"
Light
Full Sun, Partial Sun
Zones
9, 10
Water
Low
Humidity
Low to moderate
Lifespan
Long-lived
Native To
Australia
Toxicity
Non-toxic
Planting
How to Grow
- Select a planting site in full sun to light shade with exceptionally well-drained sandy or gravelly loam.
- Dig a hole twice as wide as the root ball but equal in depth, ensuring the crown sits level with the surrounding soil.
- Water deeply to settle the soil, then establish a strict watering schedule that allows the root zone to dry completely between waterings.
- Mulch with an organic, coarse litter to keep roots cool while avoiding the immediate collar of the trunk to prevent rot.
Pro Tip
Prune lightly immediately after flowering to maintain a dense habit; cutting back into old, leafless brown wood kills the branch because the stems lack dormant buds to regenerate.
Keep It Thriving
Care Guide
Do
- Prune the tips immediately after the flowering cycle to promote dense, bushy growth.
- Ensure the soil drainage is sharp and rapid to prevent fatal root rot.
- Use a low-phosphorus fertilizer formulated for native plants if growth appears sluggish.
Don't
- Do not prune hard into bare, brown wood, as the plant cannot regenerate from old stems.
- Do not allow the plant to sit in standing water or heavy, waterlogged clay soils.
- Do not apply standard high-phosphorus garden fertilizers.
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Pest Check | ||||||||||||
| Prune | ||||||||||||
| Winter Prep |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Scarlet Kunzea questions
What zones can Scarlet Kunzea grow in?
Scarlet Kunzea 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 Scarlet Kunzea deer resistant?
Not reliably. Deer may browse Scarlet Kunzea, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Scarlet Kunzea bloom?
Scarlet Kunzea typically blooms in spring through autumn. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Scarlet Kunzea need full sun?
Scarlet Kunzea does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Scarlet Kunzea drought tolerant?
Yes — once established (usually after the first full season), Scarlet Kunzea handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Kunzea to compare
Keep exploring
Explore the genus
Hardy in your zone?
Grow Scarlet Kunzea with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.



