Broadway Arboretum

Species Information Page

Banksia victoriae Woolly Orange Banksia

   
Location in Arboretum: Northern Sandplains
No on Map: NS05

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  • Only grows near Kalbarri.
  • The Woolly Orange Banksia has furry leaves as an adaptation to dry conditions. 
  • The Woolly Orange Banksia retains its flowers around the seed, unlike the Acorn Banksia. It could be said that the Acorn Banksia has a naked seed (which is illustrated by the photo for Acorn Banksia)!
  • Like most other Proteaceae, the Woolly Orange Banksia has proteoid roots, roots with dense clusters of short lateral rootlets that form a mat in the soil just below the leaf litter. These enhance solubilisation of nutrients, thus allowing nutrient uptake in low-nutrient soils such as the phosphorus-deficient native soils of Australia (1).
  • The species lacks a lignotuber, so plants are killed by bushfire. However, it is adapted to release its aerial bank of seeds following a bushfire, and so regenerates rapidly (2). This behaviour, known as serotiny, makes the Woolly Orange Banksia dependent upon a suitable fire regime or human intervention for successful regeneration.
  • Threats to the species include susceptibility to Phytophthora cinnamomi dieback, and the loss of flowers due to harvesting for the cut flower trade. It is not currently considered endangered, partly because a significant proportion of the population occur within the Kalbarri National Park (3).
  • Seeds do not require any treatment, and take 27 to 41 days to germinate (5). It is easy to propagate from seed, but rather difficult from cuttings. It grows quickly, and flowers in three to four years from seed. Only light pruning, taking care not to prune below the green foliage is recommended (6).
  • The Woolly Orange Banksia is very popular for cut flower production.
  • Listed as a waterwise plant for Perth.