The Story
Plant Bio
Alloxylon flammeum, commonly known as the Queensland tree waratah, is an evergreen tree endemic to the tropical montane rainforests of far northern Queensland. In cultivation, it reaches six to ten metres in height, developing a dense, upright canopy of glossy, leathery leaves.
The species is distinguished by its pronounced transition from deeply lobed juvenile foliage to entire, oblanceolate adult leaves. During spring and early summer, it produces dense terminal clusters of over one hundred bright orange-red tubular flowers that lack the large surrounding bracts of true waratahs.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Tree
Height
393 inches
Width
157 inches
Light
Full Sun, Partial Sun
Zones
9, 10
Water
Medium
Humidity
High
Lifespan
Long-lived
Native To
Northeastern Australia
Toxicity
Non-toxic
Bloom period
Spring – Summer
In flower about 4 months of the year
Planting
How to Grow
- Select a planting site in full sun to light shade with deep, acidic to neutral, well-drained loam derived from basalt or granite.
- Dig a hole twice the width of the root ball, ensuring the surrounding soil is loose to prevent waterlogging.
- Gently position the plant in the hole to avoid disturbing the sensitive Proteaceae root system, backfill, and water in thoroughly.
- Apply a thick layer of organic mulch over the root zone, keeping it several centimetres clear of the trunk base to prevent collar rot.
Pro Tip
Always select cutting-grown specimens rather than seed-grown plants; cutting-grown trees flower within two to three years, whereas seed-grown individuals require seven to eight years to produce their first blooms.
Keep It Thriving
Care Guide
Do
- Use only low-phosphorus fertilisers formulated specifically for native Australian plants.
- Provide deep, regular watering during hot, dry summer periods to support flowering.
- Protect young trees from strong winds and harsh afternoon heat until established.
Don't
- Do not plant in heavy clay or poorly drained soils where water can pool around the roots.
- Do not prune hard into old, leafless brown wood, as it will fail to shoot.
- Do not disturb the sensitive root system during transplanting or weeding.
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Pest Check | ||||||||||||
| Prune |
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
Queensland tree waratah questions
What zones can Queensland tree waratah grow in?
Queensland tree waratah 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 Queensland tree waratah bloom?
Queensland tree waratah typically blooms in spring through summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Queensland tree waratah need full sun?
Queensland tree waratah does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Queensland tree waratah drought tolerant?
Yes — once established (usually after the first full season), Queensland tree waratah handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
Keep exploring
Explore the genus
Hardy in your zone?
Grow Queensland tree waratah 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.