In previous years, I have planted 'Radar' onion sets in October as they
are a winter hardy variety. They seem to take well and are popping
above the ground strongly by early November.

However I find that, come the spring, a lot of them are lost. And those
that remain and thrive well are not much earlier for cropping than my
main crop onions sets that I plant out at the usual time.

I feel that they offer little advantage and that I might be better off
saving the space that they would occupy to plant out more of the regular
sets around about April time.

What are other peoples' experience here with over winter onions?

Are they worth doing?

Ed