There is perhaps no fresher flavor than a sprig of dill. This popular annual is irreplaceable in everything from fish dishes to soups—and pickles of course! Dill can be dried, but it loses its flavor quickly, so use it up while fresh if you can. And luckily dill grows rapidly into a tall, branching plant that will self sow, because once you get a taste, you'll want a healthy handful of dill in everything!