The Story
Plant Bio
Hymenosporum flavum, the Australian frangipani, is an evergreen tree reaching fifteen to fifty feet in cultivation, with a narrow, columnar habit that broadens with age. The glossy, dark green leaves cluster toward the branch tips, providing a backdrop for large, highly fragrant flowers that open cream-white and age to deep golden-yellow.
This species is distinguished by its terminal clusters of tubular, nectar-rich flowers that span up to eight inches across and emit a sweet scent. The new foliage emerges with a soft, velvety pubescence before maturing into smooth, leathery leaves.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Tree
Height
480"
Width
240"
Light
Full Sun, Partial Sun
Zones
9, 10
Water
Moderate
Humidity
Moderate to high
Lifespan
Moderate to long-lived
Native To
Australia and New Guinea
Toxicity
Non-toxic
Bloom period
Spring – Early summer
In flower about 4 months of the year
Planting
How to Grow
- Select a planting site in full sun to partial shade with fertile, highly permeable loam or sandy soil.
- Dig a hole twice as wide as the root ball and of equal depth, ensuring the crown sits level with the surrounding soil.
- Water deeply immediately after planting to settle the soil, then maintain consistent moisture during the first growing season.
- Apply a thick layer of organic mulch around the base, keeping it clear of the trunk, to conserve moisture and protect young roots.
Pro Tip
Never prune hard into old, leafless wood, as the branches lack dormant buds on aged timber and will fail to regenerate.
Keep It Thriving
Care Guide
Do
- Prune lightly immediately after flowering to maintain a dense, compact canopy.
- Plant in a wind-sheltered location if growing in marginal frost zones.
- Use a low-phosphorus, slow-release fertilizer formulated for native plants in early spring.
Don't
- Do not plant in heavy, compacted clay or poorly drained low spots where water pools.
- Do not cut back into bare, woody stems that lack green foliage.
- Do not overwater established trees, as soggy soil triggers Phytophthora root rot.
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
Australian Frangipani questions
What zones can Australian Frangipani grow in?
Australian Frangipani 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 Australian Frangipani deer resistant?
Not reliably. Deer may browse Australian Frangipani, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Australian Frangipani bloom?
Australian Frangipani typically blooms in spring through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Australian Frangipani need full sun?
Australian Frangipani does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Australian Frangipani drought tolerant?
Yes — once established (usually after the first full season), Australian Frangipani 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 Australian Frangipani 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.