You'll need both sexes to produce the seed. There are a couple of nurseries who advertise them online
in Australia. In the right places, coastal fore dunes and other salty windy places they can be seriously invasive. Unless you have a burning need for its pharma uses there are plenty of orange berried
shrubs around that could do the same job as this species.

Nikki, plant seeds aren't distinguishable as male or female, its pot luck as to what species you get
and I'm not really sure what you mean by "wild" and "tame" plants.
There are selections or cultivars that can often only be maintained by cloning the material (ie cuttings)
but these aren't "tame" by any means, they are just selections made from within the species natural
genetic variability. The result of human mediated breeding through the crossing of two cultivars or
varieties is just another cultivar and is still genetically the same species, no more or less wild than
any plant in that species.

Use Google to find the nurseries online, search for the full species name and restrict your search to
Australian websites.