Last edited on October 15, 2023. View history
Dekopon
Dekopon
A variety of orange
How to sow dekopon: Transplant grafted sapling
Sun requirement for dekopon: Plant in Full Sun
Originally a brand name, "Dekopon" has become a genericized trademark and it is used to refer to all brands of the fruit; the generic name is shiranuhi or shiranui (不知火).
Dekopon is distinctive due to its sweet taste, large size and the large protruding bump on the top of the fruit.
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Dekopon facts
Lifespan
Crop cycle
Max altitude
Optimal light
What are growing degree days?
A plant grows with warmth, not with days. A growing degree day is one day's worth of useful warmth: how many degrees the day's average temperature is above the lowest temperature the crop grows at. Add them up from planting and you know how far along the crop is, whatever the calendar says.
Say that lowest temperature is 10°C. A day averaging 17°C gives 7 growing degree days. A day averaging 8°C gives none, as it is too cold for the crop to grow. That is why the same lettuce takes about 50 days in a summer and 90 in an autumn: it needs the same total warmth either way.
For dekopon, the FAO EcoCrop database gives a lowest growing temperature of 13°C and a shortest growing cycle of 180 days at its best temperature, about 2160 growing degree days to a first harvest.
Where you've told us where your garden is, we use this and the weather there to predict when your dekopon will be ready to harvest. We don't use it for how long a plant lives or when it finishes: we go by what members have logged for that.
How members grow dekopons
Sunniness
Planted from
Plant dekopons with
Video
Where dekopons grow
Only plantings by members who have set their locations are shown.
What people are saying about dekopons
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Who's planted dekopons
- corvi Dining Room containers · salt spring island
Dekopon harvests
Nobody has harvested this crop yet.
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Time to harvest
If sown now, expect a first harvest in about 180 to 365 days.
From the growing cycle in the FAO EcoCrop database, which is the same wherever it is grown.
Ecological requirements
Data from the FAO EcoCrop database for Citrus sinensis (L.) Osbeck
| Family / Taxonomy | Magnoliopsida Rosidae Sapindales Rutaceae |
|---|---|
| Killing temperature | growth: 0 °C, rest: -10 °C |
| Life form | tree |
| Life span | perennial |
| Habit | erect |
| Optimal soil depth | deep (>>150 cm) |
| Optimal soil texture | medium, light |
| Optimal soil fertility | moderate |
| Optimal soil drainage | well (dry spells) |
| Optimal soil salinity | low (<4 dS/m) |
| Photoperiod | short day (<12 hours), neutral day (12-14 hours), long day (>14 hours) |
Learn more about dekopons
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