Silver wattle (Acacia dealbata)

Care, watering, light and tips for Silver wattle on Floravia.

Silver wattle

Quick facts

About Silver wattle

Acacia dealbata, commonly known as mimosa or silver wattle, is a fast-growing evergreen tree native to Australia. It is distinguished by its finely divided, silvery-green foliage and its spectacular, fragrant, globular yellow inflorescences that appear in winter, creating a vibrant contrast in the landscape. It is ideal as a specimen tree in large gardens, for hedging, or as a shade tree in temperate to warm climates.

Native range

Australia (southeast) and Tasmania

Care tips

It requires full sun for abundant flowering and optimal development, tolerating some light shade. It is a drought-tolerant species once established but appreciates moderate watering during its first year and in dry periods. It prefers well-drained, slightly acidic to neutral soils and is quite adaptable to different substrate types. A common mistake is excessive drastic pruning, which can weaken the tree; it is better to perform light formative and maintenance pruning after flowering.

How to save a dying Silver wattle

Warning signs
Yellowish or brown leaves falling in mass, dry and brittle branches.
First aid
Check drainage and water if soil is dry. Prune dead branches and protect from extreme cold.
What kills it
Overwatering causing root rot or severe, prolonged frosts. Also very compacted soils.
Can it be saved?
Yes, if the main root is not rotted and there are still green shoots on the trunk or branches.

Open in Floravia — reminders and AI advice