How do you grow onion from sets?
Posted by Dobies Staff on 17 October 2014 03:38 pm

Onions are one of the easiest crops to grow in the vegetable garden. As there is barely a week in the year where onions are not used at some point in the kitchen, why not follow our easy step by step advice and try growing them for yourself. You won't be disappointed and may even be surprised by the difference in quality and flavour to what is available in the supermarket.

Onions like a sunny, sheltered site in well drained soil. Plant onion sets 10cm (4") apart in rows 30cm (12") apart from October to mid-April (dependant on variety). Gently pushthe sets into,soft, well-worked soil so that the tip is just showing and firm the soil around them.

Water if the weather is dry and give an occasional feed with a general liquid fertilizer. A light of high potassium fertilizer in June will help ripen the bulbs ready for storage. Stop watering and feeding once the onions have begun to gain some colour on the top, and remove any mulch or soil to expose the bulb to the sun.

Onions can be harvested when the foliage turns yellow and starts to toppel over. Leave for two or three weeks and then carefully lift with a garden fork. If you wish to store onions they must be firm, disease free and then dried for two or three weeks, either in the sun or in a shed if the weather is wet.

Don't have a garden?

Although your onions are best suited for growing in the open ground, you could grow a short row or two in large, deep containers or raised beds. However they are not suitable for growbags as they need deep compost for healthy roots.



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