Flowers Some acacias flower in their first year, others take longer. Flowering time may vary in length from a few weeks to many months, once again depending on the species and often the season. Acacia flowers vary considerably in size and occur in the form of balls or spikes. The flower heads are made up of a few or many tiny individual flowers with numerous free stamens, as illustrated in the diagram. Ball flower heads, solitary, from a phyllode axil Rod flower head and a phyllode with 3 veins or nerves Flowers are attached to the stem in different ways.
Flowers vary in colour from almost white through shades of cream and yellow to orange.
A.purpureapetala , differs from the usual colour range, and produces mauve or purple flower heads.