I broadcast thousands of saved onion seeds last spring and now have a thriving patch (March 22nd 2012), but each plant has six or seven onions tightly attached to each other. Are they actually the same plant? Should I separate them and plant each individually ie treat them as sets, even though they are green-topped? We live in Dorset, near the sea, and winters are very mild, so the onions never lost their green leaves.
I'd really appreciate advice, Yours Robin Dulake