Without any kind of a deep freeze this past winter, the weeds have had a field day (pun intended) this spring.  I don’t know about your neighborhood, but ours is totally infested with chickweed.  Now, chickweed looks innocent enough, with its dainty little white flowers and delicate stems, but don’t be fooled.  It’s a cold-blooded assassin.  It grows crazy fast and chokes out everything it touches, so if you don’t pull it as soon as you see it, it’s everywhere.  And what’s worse is that pulling chickweed also scatters its seeds.  I swear the little …