The fruit of the finger lime Citrus australasica is sought after by everyone around the world. Often described as ‘lime caviar’ for its small bead-like crystals of tangy juice, this bushfood is used to pep up drinks, in desserts, as a garnish and even to make marmalade. For the home gardener, it is also an attractive tree, growing to six metres, and its thorns provide a perfect habitat for small birds. It is native to the rainforests of south-east Queensland and north-east New South Wales but will grow everywhere else.