Last edited by shiny on 2 Nov 2026. View history
Pukekohe Long Keeper Onion
Pukekohe Long Keeper Onion
Allium cepa
A variety of onion
A New Zealand heirloom onion. It is described as the best keeping onion, so dry and store it after harvest. A yield of 27 kg per square metre has been recorded, planted 10 cm apart on the diagonal in good, well-fed soil. Sow in trays from February to July, transplant when the tops are 8 to 10 cm high, and harvest in January and February.
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Growing Pukekohe long keeper onions
Annual
living and reproducing in a single year or less
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Ecological requirements
Data from the FAO EcoCrop database for Allium cepa L.
| Family / Taxonomy | Liliopsida Liliidae Asparagales Alliaceae |
|---|---|
| Optimal temperature | 12 - 25 °C |
| Absolute temperature | 4 - 30 °C |
| Optimal rainfall | 350 - 600 mm/year |
| Absolute rainfall | 300 - 2800 mm/year |
| Optimal soil pH | 6.0 - 7.0 |
| Absolute soil pH | 4.3 - 8.3 |
| Crop cycle | 85 - 175 days |
| Max altitude | 2000 m |
| Life form | herb |
| Life span | biennial |
| Habit | erect |
| Optimal soil depth | medium (50-150 cm) |
| Optimal soil texture | medium, organic |
| 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) |
| Optimal light | clear skies |
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