The ‘Arnold Blood Dwarf’ is an excellent, compact cultivar of the Blood Orange, discovered in South Australia by Mike Arnold. As a dwarf form, the tree typically reaches a manageable height of around 1.5 to 2.5 metres, making it perfectly suited for container gardening on patios or planting in small backyards. It is valued for being one of the most reliable blood oranges for developing good internal colour across a wider range of Australian climates, though the deepest red pigmentation still occurs in areas with cool nights during the winter ripening period.
The fruit is small to medium-sized, round, and has a finely pebbled orange skin that may develop a slight reddish blush or streaking. The flesh is its true feature: a beautiful, deep orange to dark red, streaky colouration that is juicy, very sweet, and carries the distinctive strawberry-like flavour characteristic of blood oranges, with few seeds. It is a mid-season variety, with the fruit usually ready to harvest from late autumn through spring.
Care Tips
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Position: Requires a position in full sun (at least 6 hours daily) for the sweetest fruit and best colour development. As a potted plant, ensure it is in the sunniest spot and protected from strong winds.
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Climate: Best suited to Warm Temperate and Subtropical climates. Like all blood oranges, the intensity of the red pigment (anthocyanins) is maximised by cooler night temperatures as the fruit ripens.
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Soil: Plant in deep, fertile, and very well-drained soil. For containers, use a specialised, quality citrus and fruit mix.
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Watering: Water regularly and deeply during the growing season (warmer months) and when the fruit is forming. Allow the top layer of soil to dry slightly between waterings, but never let the root ball dry out completely.
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Fertilising: Citrus are heavy feeders. Apply a high-quality citrus fertiliser (high in nitrogen) three to four times a year: in early spring, mid-summer, and early autumn. Potted plants need more frequent, lighter applications.
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Pruning: Prune lightly in late spring after the main crop has finished to maintain a compact, bushy shape and remove any suckers that appear below the graft union.
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Harvest: Fruit can be left on the tree and remains fresh and juicy for an extended period, ripening from late autumn/early winter onwards.
