You have quite a list there.
What types don't you have that you want?

If you have time...
I'd be curious to know the sequence of bloom for all your allium collection- from first to last.

So far I have 9 types ( I have kept) and they bloom at different times. I'm sure there are a few more that could extend that window.
karen

Maybe post this on the bulb forum too? There's a lot of ornamental enthusiasts there. I don't grow the edible kind myself: just check here every so often. But when I post an allium question on the bulb forum, I get lots of responses.