Wild Garlic

I always knew that these strange plants (weeds?) growing by our driveway were something. John said that they were onions. After digging one up, I now know that they are wild garlic. I don't know why they are called "wild", other than that maybe nobody specifically planted them there. They are almost like the garlic that I buy in the store, the skin is maybe a little pinker.

I've been using at least one whole garlic every day in my cooking. I wonder if they will get bigger as time goes by, or rot in the ground? I would like to try roasting them.