Acacias are useful garden shrubs where space is not a problem, but they have never been popular house plants. The spreading branches bear feathery leaves or spiny false leaves known as phylloclades, and in winter or spring the characteristic yellow flower-heads appear.
These are clusters of small powder-puffs which are much more popular in flower arrangements than in house plant collections. Keep the plant under control by cutting back straggly and unwanted growth once flowering has finished, and keep it robust by feeding and watering regularly during the growing season. If you can, place the pot outside in a sheltered spot in garden once summer arrives. Bring plant back indoors in fall.