Acacia podalyriifolia

Mount Morgan Wattle, Queensland Silver Wattle, Queensland Wattle, Pearl Acacia, Pearl Wattle and Silver Wattle

Family: Fabaceae subfamily Mimosoideae

Grows to 6 m high and around the same width, in open forest and woodland in south eastern Queensland and just into the top of NSW on the North Coast. It has naturalised further south in NSW, as well as in Western Australia and South Australia (in a similar fashion to Acacia baileyana).

The phyllodes (modified leaves) are elliptic to broadly elliptic or ovate, ± straight, to 5 cm long and to about 3 cm wide, and silver-grey in colour.

It blooms throughout the year, with flowers produced in globular heads to 8 mm diameter, with up to 30 very small staminate flowers per head. The heads are produced in racemes, in phyllode axils, with up to 22 heads per raceme. The flower colour is a very fluorescent yellow and very eye-catching against the grey foliage.

Seed pods are straight or twisted and flat to 12 cm long and to 2 cm wide, quite rectangular to squarish.

In the garden

It is a popular and widely cultivated plant which may flower in its second year. It is very useful as a quick growing screening plant as it generally retains a bushy shape. The species is suited to a wide range of climates and soil types.

The species seeds freely and is invasive in natural bushland areas so take care where planting.

The bright flowers against the grey foliage make it very attractive.

Acacias can suffer from a number of pests, including borers, scale, galls and leaf miners. Growing plants suitable to your local environment minimises these occurring.

Propagation

Propagation is easy from scarified seed by covering with boiling water for 24 hours and discarding any seeds still floating on the surface.

Other information

Most wattles regenerate from seed after fire with some species exhibiting basal suckering.

Acacia – from Greek acis, meaning a thorn or “thorny”.
podalyriifolia – meaning having leaves like the genus Podalyria – a genus of the pea family (Fabaceae subfam. Faboideae) – endemic to South Africa.

Not considered to be at risk in the wild and is also a known weed in some places.

http://anpsa.org.au/a-pod.html
https://en.wikipedia.org/wiki/Acacia_podalyriifolia
http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Acacia~podalyriifolia

By Jeff Howes