Yes, there are tinged with a purplish blue, Vivienne.
Some other varieties are also available.
I don't think that you'll will have any problems with them in Melbourne. I grow several of them outside where they tolerate frost periods and others in my greenhouse as well, where they have to stand temperatures up to 45 °C in summer in a soil that is completely dried out. No problem at all!
And you can purchase them from Australian nurseries, e.g. from
here!