The Mandarin and Orange Splitzer (often referred to as a Multi-Graft) is a clever solution for home gardeners with limited space. By grafting a Mandarin variety and an Orange variety onto one hardy rootstock, you can harvest two different types of citrus from the same tree. This setup provides a longer harvest window and a variety of flavours without needing the space for two separate mature trees.
The specific varieties used can vary, but common combinations in Australia include an Imperial Mandarin for early season snacking and a Valencia or Navel Orange for juice and winter fruit. The tree grows into a compact, rounded shape with glossy evergreen leaves and highly fragrant white blossoms in spring. Because it is two trees in one, it requires careful management to ensure one variety does not outgrow the other.
Care Tips
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Position: Requires a warm, sunny spot in full sun (at least 6 hours daily). Protection from strong winds is important, especially when the tree is heavy with fruit.
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Climate: Thrives in Temperate and Subtropical regions. Citrus trees are sensitive to heavy frost when young, so provide protection or plant in a sheltered microclimate in cooler areas.
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Soil: Needs deep, fertile, and very well-drained soil. Citrus are heavy feeders but hate having wet feet.
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Watering: Regular and deep watering is essential, particularly from flowering through to fruit harvest. Inconsistent watering can lead to fruit splitting or dropping.
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Fertilising: Use a specific Citrus and Fruit Tree fertiliser. Apply in late winter to prepare for spring growth, and again in late summer.
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Pruning: This is vital for a Splitzer. You must prune to maintain balance so that one graft (the more vigorous variety) does not dominate and “starve” the other side of light and nutrients. Remove any growth emerging from below the graft union.
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Harvest: Mandarins usually ripen first (Autumn to Winter), followed by the Oranges (Winter to Spring). Always harvest using secateurs rather than pulling the fruit to avoid damaging the branches.
