The Story
Plant Bio
Geijera parviflora, commonly known as wilga, is an evergreen tree native to inland eastern and southern Australia, where it grows in dry woodlands and semi-arid plains. It develops a dense, rounded crown with upright inner branches and outer branchlets that droop to the ground, creating a weeping habit.
The narrow, linear leaves are highly aromatic, releasing a strong citrus-like scent when crushed. Small, white, star-shaped flowers appear in loose terminal panicles during winter and spring, emitting a musky scent that attracts native insect pollinators.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Tree
Height
315 inches
Width
157 inches
Light
Full Sun, Partial Sun
Zones
9, 10
Water
Low
Humidity
Low to Moderate
Lifespan
Long-lived
Native To
Australia
Toxicity
Non-toxic
Bloom period
Winter – Spring
In flower about 4 months of the year
Planting
How to Grow
- Select a planting site in full sun with deep, well-drained soil, avoiding low-lying areas prone to waterlogging.
- Dig a hole twice as wide as the root ball but no deeper, ensuring the plant sits at the same level as it did in the container.
- Water deeply during the first two summers to establish a deep root system, then phase out supplemental irrigation.
- Clear away any encroaching lawn or aggressive groundcovers within a two-metre radius of the trunk to eliminate root competition.
Pro Tip
Isolate this species from lawn areas where it must compete with invasive turf grasses like Kikuyu, and ensure the planting site has sharp sub-soil drainage to prevent root rot.
Keep It Thriving
Care Guide
Do
- Plant in a position with excellent sub-soil drainage.
- Train young plants early to establish a strong central leader.
- Provide wide clearance from pathways to allow the weeping outer branches to droop naturally.
Don't
- Do not plant in heavily irrigated lawn areas or wet, heavy clays.
- Do not prune harshly into old, bare wood, as epicormic recovery is unreliable.
- Do not apply heavy artificial fertilisers.
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mulch | ||||||||||||
| Pest Check | ||||||||||||
| Plant | ||||||||||||
| 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
Wilga questions
What zones can Wilga grow in?
Wilga 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 Wilga bloom?
Wilga 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 Wilga need full sun?
Wilga does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Wilga drought tolerant?
Yes — once established (usually after the first full season), Wilga 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 Wilga 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.