I grow sweet potato as a ground cover in the shadier spots of my garden in Hervey Bay – places where the grass doesn’t grow - but I also dig it up to eat.
In Queensland and most Australian supermarkets and green grocers, an orange-skinned version is sold. It is very sweet and has the consistency of pumpkin when cooked.
Often they don’t call it sweet potato but kumara, which is a South Pacific Maori word.
Occasionally you can get a purple-skinned variety which has nice white flesh, is less sweet, pithier and similar to what I’m used to from Papua New Guinea. This is the main one I grow in my garden.