Longan (Dimocarpus longan)

Longan

Dimocarpus longan

Its translucent flesh holds sweet, sun-warmed sweetness like nature's candy. Evergreen fruiting tree; common names: longan, dragon's eye.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun for mature fruiting trees; young saplings tolerate partial shade to prevent leaf scorch
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Watering Water deeply when the top 15–20 cm of soil dries out; avoid waterlogging to prevent root rot
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Temperature Thrives in 20–30°C; tolerates brief light frosts down to 10°C but avoids prolonged cold exposure
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Characteristics

  • Leaf: Pinnately compound, glossy dark green leaflets with smooth, entire margins
  • Flower: Small, creamy-white, fragrant panicles that attract pollinators
  • Fruit: Round brown shell enclosing a translucent, juicy aril with a single shiny black seed
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Care Guide

Watering

Increase watering during flowering and fruiting to maintain consistent soil moisture

Fertilization

Apply balanced organic fertilizer before flowering to support bloom production. Stop fertilizing in late autumn to prepare the tree for dormancy

Banana peel compost tea:Compost banana peels for 2–3 weeks, steep in water for 24 hours, dilute 1:20 for root drench to support fruiting and foliage health
Pruning
  • Remove dead, diseased, or crossing branches in late winter to improve airflow and light penetration
  • Thin overcrowded branches during fruiting season to promote larger, healthier fruit
  • Prune dwarf indoor cultivars to maintain desired height and shape in early spring
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirms no toxic compounds; non-toxic to cats

Humans: No known toxic effects; ripe fruit is edible and safe for human consumption

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Garden Uses & Culture

Culture: Symbolizes good fortune, unity, and longevity in traditional Chinese culture

Usage: Edible sweet fruit; ornamental shade tree in tropical landscapes