It will be interesting to see if you get the white flowers like the domestic Chamomile. These look like the wild chamomile -- I know it as Pineappleweed (Matricaria discoidea). The little flowerheads should taste like a light-flavored pineapple. It's a tough little weed that grows in hard, compacted soil -- the tough places, lol. That's about the size they get. I eat the whole thing, from the ground up, in salads, but the flowerheads are the tastiest, I think.