In article ,
Ron Hardin wrote:

I like it, it's part of the bicyclist's spring flower treat in April
http://home.att.net/~rhhardin5/w21.jpg

It thrives in Central Ohio, but it isn't everywhere, so the concern
is probably (like most) overwrought.

A sort of chronological weed appearance photo essay from April-May 2006
(in between Dobermans) is at http://home.att.net/~rhhardin/weed.html

Roadside weeds, it's all you ever need.

Let me get this right. The garlic mustard is highly invasive and is only
in Massachusetts, Wisconsin, Oregon, and thrives in central Ohio but, it
isn't everywhere. That's good to know.

- Bill
Coloribus gustibus non disputatum (mostly)