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Onion Information



Allium cepa

Onions can be many shapes, colours and sizes. Round or oval, white, brown or red. Depending on the variety they can be planted from Spring to Autumn. For best results keep the onions clear of weeds.

Moon Planting Type: Root

Soil Type: Any Soil

Aspect: Any aspect

Light: Full Sun

Hardiness: Winter Protection

Moisture: Well-drained

pH: Neutral (6.6 - 7.3)



Onion Growing Notes


Sow seeds under glass in midwinter. Then move to a cold frame to harden off. In warmer weather plant the onions directly into the soil. Sow them thinly at 1cm depth.

Pruning & Thining

Thin the onions to 5-10cm distance.


Harvest onions as and when required. If you are going to store the onions make sure they have been dried out before placing in cool dark storage.

Select a Variety

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Onion Varieties

  • List 1
  • List 2