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Planting
Days to maturity
Seasonal yields
Sow indoors · Direct sow · Transplant outdoors
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Plant · P-498
Longan
Dimocarpus longan
Longan is an evergreen tree closely related to lychee, growing a mildly sweet, translucent fruit under a thin brittle rind, eaten raw, dried, preserved in syrup, cooked into sweet and sour dishes, added to soups, or sold frozen. Flowering needs a distinct cool, dry season of low but non-freezing temperatures followed by warm, humid, well-watered weather to fill the fruit, so bearing swings widely from year to year rather than coming reliably every season. It grows into a large tree - 30 to 40 feet tall and wide, with over 100 feet possible under ideal conditions - so it isn't something to grow small in a container, and it can't tolerate wet feet, declining after as little as five to ten days of standing water.
Record at a glance
Growing profile
- Sun
- Full Sun · Partial Sun
- USDA zone
- USDA 10–12
- Soil
- Sand · Loam
- Moisture
- Well-Drained · Moist
Vertical layer
Canopy- Soil pH
- 5.5–6.5
- Plant type
- Evergreen Tree
- Mature height
- 30–40 ft
- Mature spread
- 35–45 ft
- Plant spacing
- 40 ft
- Root type
- Tap
- Spread pattern
- None
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The deeper layer
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- Primary
- Locked ecological function
- Secondary
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- Byproduct
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Behind the record
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