well I have some chives but mine are not blooming at all or making any buds for that. But you being in a colder zone, I would think that would be even later in the year than me? do onions bloom? well I just don't know anything about these. If I do not find out soon though, I am digging mine up and throwing it out. I have wild onions growing in my yard and my flower beds, and in the cracks on the sidewalk and ... and ... well, I don't want anymore like that!
I have never been able to get rid of those things. I don't know why I didn't think to find out about this before I planted them