I've been out of town for a week and came home to find that my cilantro has bolted. I'm still using the "regular" looking cilantro at the base of the plant and it tastes great. But what about the more feathery looking foliage at the top - is that just as edible? Will any more "good" cilantro grow now that it's bolted? Does bolting mean I need to go ahead and pull it out? I know the flower tops will eventually produce coriander (right?), but I don't plan on harvesting that.