Tarragon rocks!! We love it with almost anything (maybe not yogurt...).

I keep mine year to year in a pot which I pop in my plastic greenhousie thing during the winter. In the spring, I will select one pot to rip apart and make about 4 or 5 new plants. I then give these to friends as pressies.

If you plant some out as an annual it goes like the clappers. You just have to pull it up in the Autumn cos at the first sign of inclement weather it gives up and doesn't always recover (although it has been known).