Here's the rest of the weedy story. Those pretty purple flowers? Mostly they don't happen. Field garlic flower heads are converted to bulblets on most plants. I had seen a lot of field garlic before I saw flowers on any. Those bulblets are a very aggressive style of reproduction. Get these in your garden and they will give you fits. They resist herbicides. In fields they taint the flavor of crops; in pastures they spoil the milk. An altogether unpleasant plant.