Grape hyacinth (Muscari botryoides) an escaped ornamental bulb
Gene
Ron Hardin wrote:

I ignored the first couple that turned up
http://home.att.net/~rhhardin5/w23.jpg Weed unknown 23
suspecting that somebody planted it, but it's in enough
roadside places that are weed-like that I have to account for it
in my roadside weed list. What is it?

Perhaps not bloomed yet, a cluster of blue balls.

(current list http://home.att.net/~rhhardin/weed.html )