Excellent information, thank you. This small tree grows very well around the area where I live, but it is not native to the country. It is also a very hardy tree, that can withstand severe drought, heat and frost.
I also grow ginger and tumeric, as well as mustard, and I would love to get hold of some seeds for black seed, but it is hard to come by in Aus.
Thanks again for your interesting post, please feel free to post anytime :)