Somerset,
United Kingdom 
matured red onions from sets, now ready, when should they be dug up for drying & storing
26 Jun, 2010
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If the onion leaves have gone over sideways and the neck has closed you can pull them and leave on the soil to dry out for a couple of weeks. If, big if, it looks like it will seriously rain then move them under cover and then put back out.
26 Jun, 2010