[Wikipedia] Australia Native, Introduced or Garden Escapee Elsewhere: It is native to Western Australia, but is grown as an ornamental plant in appropriate climates worldwide. It can sometimes be found growing in the wild as an introduced species or garden escapee, for example in other Australian states[3][4][5] and in California,[6] where it is popular in landscaping. It is sometimes considered a weed.[5][7][8] (link added by Mary Ann Machi)