Question for Tyler - what do I do with this onion?

I planted the onions I got from you last fall, and they came up this year and are doing great.  My question is, what can I do with them?  Can I use that top thing as an onion?  Plant it and get more?  Or is digging the bulb and using it the only option?  Sorry if these are silly questions, I never grew onions before.

The 'top' should open to reveal a beautiful purple blossom. The blossoms are edible often in salads.

I have bunching chive onions, those blossoms are often the first blossoms we have on our farm every Spring.

What sort of onions are they?  Egyptian walking onions maybe?

Burra Maluca wrote:What sort of onions are they?  Egyptian walking onions maybe?

I don't think so, but I don't know what kind they are.

I think I gave you Canada Onions, Allium canadense, a native onion with a wide range in North America.  The whole onion can be used, just like green onions/scallions.  The top parts can be used like chives, or you can just use the white bottom part for bulb onions.  If you cut the plant an inch or so above the bulb, it will grow back.  If allowed to go to seed, the patch will rapidly spread.  They also spread by division, I believe.  In any case, each year we have many more of them!

Excellent, that's exactly what I was hoping for.  I'll leave them this year and let them go to seed.