A naturally small growing species, Acacia argyrophylla comes in two forms: the species itself which can reach around 4 metres in height, and a dwarf form which will reach around 1.5m. Both are commonly called the Silver Mulga for the silvery green colour of the foliage, and both have typical golden yellow flowers.
Both varieties are well suited for helping to establish a new garden. They are fast-growing and relatively neat in appearance. You could also use them as a background plant in a native garden border or a screening plant.
How to Grow Silver Mulga
This is a plant that requires well-drained soil to grow well. It will grow in full sun or light afternoon shade.
- Hill up the soil to improve drainage if needed.
- Plant and water in with a liquid seaweed fertiliser.
- Mulch lightly around the plant.
- Water deeply during long dry periods in the first summer, allowing the soil to dry well between watering.
- Botanical name – Acacia argyrophylla
- Common name – Silver Mulga
- Family – Fabaceae
- Origins – Flinders Ranges in South Australia
- Height – To around 2-4m
- Spread – To around 3m
- Growth rate – Medium to fast
- Position – Full sun to a little shade
- Soil – Well drained
- Flowering time – Winter to Summer
- Foliage – Silvery green
- Frost tolerant – Yes
- Drought tolerant – Yes