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Citrus junos – Yuzu Citrus Tree

About Your New Citrus junos – Yuzu Citrus Tree

Citrus junos, the yuzu, is an evergreen citrus grown in Japan and Korea for its intensely aromatic yellow fruit. It forms a rounded, densely branched tree with glossy leaves, long sharp thorns and winged leaf stalks. Fragrant white flowers open in spring, and the knobbly fruit smells closer to mandarin and grapefruit than lemon.

Growth is 20 to 50 centimetres a year to about 2 to 4 metres tall and 2 to 3 metres wide. It is the most cold hardy citrus in general cultivation and takes repeated frost once established, so it succeeds in Melbourne, Canberra and the Adelaide Hills as well as milder coastal gardens.

It suits kitchen gardens, cool climate orchards and large pots, and the thorns make it a useful boundary plant. Fruit ripens through autumn and early winter and is used for its rind and juice rather than eaten fresh. For cool districts it is the citrus that will crop where lemons and limes struggle.

Frequently Asked Questions

About Yuzu

What is yuzu?

Citrus junos is a hardy citrus from East Asia, best known as yuzu in Japanese and Korean cooking. The fruit is a rough skinned yellow citrus about the size of a mandarin, more seed than juice, prized for its aromatic rind and sharp fragrant juice. The tree is evergreen, rounded and armed with long thorns.

How big does a yuzu tree grow?

In cultivation it generally reaches 2 to 4 metres tall and 2 to 3 metres wide, growing 20 to 50 centimetres a year. Grafted trees stay smaller and fruit earlier than seedlings, which can take many years to crop. Pruning keeps it at picking height without much effect on the following season.

Is yuzu frost tolerant?

Yes, more so than any other citrus commonly grown here. Established trees tolerate repeated frost and cold winters that would damage a lemon, which is why it is planted in cool districts. Young trees still need shelter for their first two or three winters while the wood hardens and the root system establishes.

Where does yuzu grow best in Australia?

It suits cool and warm temperate Australia: Melbourne, the Yarra Valley, Adelaide and the hills, Canberra, Tasmania and the tablelands of New South Wales. It also grows in Sydney and Perth, though a cold winter appears to sharpen the aroma of the fruit. Humid tropical areas suit it least, as it prefers a distinct winter.

When does yuzu fruit?

Fragrant white flowers open in spring, mostly October and November. Fruit follows over summer, colouring from green to yellow through autumn and ripening from about May into July. It is often picked while still green for the rind. Trees take several years to bear well, and crops build steadily once they start.

Can yuzu grow in pots?

Yes. A container of 60 centimetres or more with a premium citrus mix works well, and the restricted root run keeps the tree compact. Pots suit gardeners who want to shift the tree out of cold wind, though the plant itself is hardy. Water consistently, since potted citrus dries out quickly in summer.

How do I care for a yuzu tree?

Feed with a citrus fertiliser in early spring and again after fruit set, and keep the root zone mulched. Water deeply in dry weather, particularly while fruit is sizing. Prune in late winter to remove crossing branches and open the centre. Wear heavy gloves when working on it, as the thorns are long and sharp.

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Uses in my Garden

  • Edible Garden
  • Feature Tree
  • Plant in Pots (or) Suitable for Pots
  • Rural Property Planting

Citrus junos – Yuzu Citrus Tree works in an:

  • Edible Garden – integrates fruit, herbs, and productive plants.
  • Mediterranean Style Garden – timeless courtyard look with stone, pots, and bold greenery.
  • Japanese Inspired – serene balance of form, foliage, and flow.
  • Cottage Garden – romantic mix of flowers, colour, and texture.
  • Heritage / Traditional Garden – timeless, classic plantings for period homes.
  • Low-maintenance Garden – resilient choices for easy care and year-round appeal.

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