Why not plant an edible Australian? The macadamia nut is arguably our finest contribution to the culinary world and it will grow particularly well in coastal gardens from Sydney to Queensland.
Macadamia will also grow in all but the harshest of cooler climates if protected from frost in the first few years.
Macadamia is a member of the Proteaceae family (this includes waratahs, banksias and grevilleas), which means it should only be fertilised with low phosphorus feeds designed for native plants.
Under ideal conditions it will grow to a height of perhaps fifteen metres but less in cooler climates.
As well as the delicious nuts it is also a rather ornamental plant as well with interesting foliage and sprays of small but abundant white flowers in spring.
Further reading
Growing your own food (quick guide)
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