keith ;-) wrote:
I have lost all but a few of my stuttgarter giant & red baron to stem rot,
mould on top of onions were the stem is.I bent some of the stems over &
others let die back on there own.Then left them on the surface to dry for
week or so.After I tied them by there stems and have been keeping them
hanging in the shed.But they have slowly deteriorated.

Already? I am incredibly lazy about dealing with onions, and leave some
in the ground for ages after I ought to take them up. Usually the ones
hidden under the foliage of other crops. Provided they are allowed to
ripen off in the sun I have never had a problem. And I just put the
bulbs in redundant hanging baskets to store in the garage.

The odd one I miss completely gets to flower the following year...

What have I done wrong?I was really pleased by the onions I got but have
lost most of them, I would like to grow them next year as apart from this
found them a easy & enjoyable crop to grow.

They should grow easily, and provided you let the bulbs ripen properly
in the sun keep for ages and ages (at least March-April). Unless you
have nasty onion white rot and then all bets are off.

Regards,
Martin Brown