I planted some red and yellow onion sets last year. They came up but didn't get big. I left them in the garden and they never really died; now they are growing and starting to get seed heads on them. I pulled one and they are size of green onion. Do I leave them or do I pull them out? THANKS Judy
You can pull them and enjoy them!
Harvest the ones that have bloomed first.
Here is an article with more information.