Potato onion
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| Potato onion | |
|---|---|
| Species | Allium cepa |
The potato onion (also known as an Egyptian onion, underground onion[1] or multiplier onion)[2] is a group of varieties[3] which Maud Grieve calls Allium × proliferum[1] but has also been classed in the Aggregatum Group of Allium cepa, similar to the shallot.[3] It sometimes produces irregular-shaped[2] or round bulbs,[1][3] which in some old English varieties may be large,[1][3] although others may be less so.[2]
It is planted from bulbs, not from seed.[2] It should be planted in the fall to early spring.[2] Sources differ about planting depth, some saying shallow planting is appropriate and others calling for deeper planting.[3]
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