🌱 Longan Tree (Dimocarpus longan) – Growing Guide
The longan tree is a subtropical to tropical fruit tree, closely related to lychee. It is valued for its sweet, juicy fruit and is more cold-tolerant than lychee, but still requires warm growing conditions to fruit well.
✅ WHERE IT GROWS BEST
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USDA Zones 10a – 11b (Ideal)
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South Florida
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Hawaii
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Warm coastal areas of Southern California
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USDA Zone 9b (Possible)
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Can tolerate light, short frost
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Requires frost protection during cold spells
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Fruit production may vary by location and winter conditions
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❌ WHERE IT IS NOT RECOMMENDED
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USDA Zone 9a and below (Zones 1–9a)
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Areas with:
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Repeated freezes or extended cold periods
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Winter temperatures regularly below 28°F (-2°C)
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➡️ In these regions, longan trees may survive but rarely flower or fruit, and cold damage is likely.
☀️ GROWING REQUIREMENTS
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Full sun for optimal growth and fruiting
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Well-draining soil
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Warm summers and mild winters encourage flowering
⚠️ IMPORTANT NOTES
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More cold-tolerant than lychee, but not frost-hardy
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Grafted trees usually fruit in 3–5 years
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In cooler climates, suitable for container growing as an ornamental, fruiting not guaranteed
👉 Recommended for USDA Zone 9b and warmer, with best performance in Zones 10–11.
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