Finger Lime

Citrus australasica, the native rainforest citrus behind those glistening lime pearls, edible, ornamental, and armed with serious thorns.

Citrus australasica · Also known as Caviar Lime, Native Finger Lime

The finger lime is the bush-food plant that has quietly gone gourmet, a native rainforest citrus whose slender fruit splits open to release tiny beads of tart juice that burst like caviar, which is exactly why chefs and home cooks have fallen for it. Most people call it a finger lime or caviar lime, and it's one of the rare edibles that also holds its own as an ornamental.

It belongs to Australia's own citrus lineage from the rainforest margins of this region, so it takes to a Brisbane garden readily, though the honest first thing to know is that it's a genuinely thorny shrub, and that shapes where you put it.

In a Brisbane garden

As a plant of the rainforest edge from our own region, the finger lime is well suited to a Brisbane backyard, happy in a warm sheltered spot with the rich, free-draining, slightly acidic soil that citrus generally wants and rewarding a little care with a genuinely special crop. It fruits from autumn into winter, and half its charm is that it's both useful and good-looking, an evergreen native you can pick from that also earns its keep in the bed. Feed and water it as you would any citrus while it's carrying fruit and it settles in without drama.

The thorns are the one thing to design around, because they're sharp and plentiful, so a finger lime crammed beside a busy path or a children's play area is asking for scratched arms. We plant it where you can reach the fruit from one open side without wading through the bush, or clip it as a prickly informal hedge along a boundary where its spines become a feature rather than a nuisance. It can climb to a few metres left alone, but responds well to pruning if you'd rather keep it compact and pickable.

How we design with it

We like the finger lime because it lets a garden be productive without looking like a vegetable patch, an ornamental native that quietly hands you a delicacy, which makes it a rewarding inclusion in a considered Brisbane garden design. Sited where you can pick it easily, it turns a corner of the garden into something you actively use.

As a true Australian citrus it sits naturally within a native garden design, pairing productivity with provenance, and its thorny density makes it a genuine option as a low informal barrier hedge. Give it a warm, sheltered position with good soil, keep the prickly side away from where people brush past, and enjoy a native edible with real character.

Where we write about finger lime

Common questions

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