Acacia aneura


Mulga grows into a medium size evergreen tree, 15-20 ft. high and as wide with an upright branching structure and open foliage habit comprised of narrow silvery-gray phyllodes. Bright yellow flowers are modestly attractive from mid to late summer. Since this species is grown in nurseries from seed, there is often a range of variation in growth habit, foliage and flowering character of individual trees.

Mulga is the most widespread species of acacia in Australia. It grows in interior regions where annual rainfall varies from 4-20 in. and within warm and dry climate zones. Throughout its native range, soils are mostly acidic sands or sandy loams. These soils are often very low in available nitrogen and phosphorus. In the Inland Empire it is well adapted to heat, sun, aridity and extended periods of summer drought, and tolerates cold temperatures to 20°F.

This Australian species has become widely used in recent years as a landscape plant in desert-style gardens where it is considered to be a low maintenance and trouble-free tree. It grows well with average winter rainfall and performs well with low amounts of irrigation during the summer while maintaining good foliage character.

Plant Type: Tree
Foliage Character: Evergreen
Habit: Upright, Open
Growth Rate: Moderate, Long-lived
Foliage Color: Gray green
Flower Color: Yellow
Flower Season: Summer
Soil Adaptations: Sand, Loam
Exposure Adaptations: Heat, Drought, Aridity, All day sun
Function: Residential spaces, Courtyard and patio tree, Parkway and median tree, Flowering accent plant, Commercial spaces
Height: 15 ft. – 20 ft.
Width: 15 ft. – 20 ft.

Plant Lists

Set your preferred view

Choose between a list or map view of all signs found in our waterwise garden and park.

Welcome to the Waterwise Garden Digital Tour

This is a digital registry created to offer further information on the physical signs in our waterwise garden and park premises.

Would you like a few tips on how to use this tool?

Move around

Travel to different sections of our garden and park premises by using the horizontal scrollbar at the top.

Locate your sign​

Using the map view, you can preview what each specific sign is about by tapping on the plus icon.

Refer back to these tips

You can view these tips at any time by tapping the Help link in the top left.