My Allium tuberosum did the same thing. It never blooms before late August at the earliest, but usually mid September. It has one flower cluster right now. Looks very odd. I have to cut it off.

Kevin

That is funny, my sister, who lives in Newmarket, Ontario, just mentioned this week that she has a flower on her Lemon Queen. I am a few miles south of her but no flowers on Lemon Queen yet. Mine usually gets going pretty late. If I recall correctly, it is at full bloom well into September/October.

I think I spied one tiny yellow flower on mine too. If I recall correctly, it did the same thing for me last year. This is one that starts out extremely slowly with a sparse flower here and there until it's gradually builds up to a stunning crescendo before being knocked out by frost. I suspect that it is considered to be a late-blooming plant because by the time it builds up enough flowers to start making an impact, it is usually late summer! :-)