I was wondering where in South Australia I would be able to buy a ground cover called Spanish Shawl from. My local nursery had never heard of it
Its botanical name is Heterocentron elegans otherwise known as Spanish Shawl or Trailing Lasiandra. You'll find an entry in the Plantfinder section of this site.
You'll also see that alongside the description is an area of the page called 'Plant Marketplace' and we just so happen to list a garden centre from South Australia there - and they also ship plants all over Australia too.
Here's a link to the Plantfinder page:-
https://www.gardensonline.com.au/GardenShed/PlantFinder/Show_942.aspx