We've got a thin-soiled very sunny herb bed. Things that have done well as well as the obvious lavender and rosemary are lemon balm, marjoram and oregano. Also chives seem to do well there, as well as garlic. Feverfew is a nice herb - pretty flowers and you can use the leaves as a herb as they taste a bit like oregano. Also supposed to be a folk cure for colds/flu (hence the name). Strangely, thyme didn't do so well in this particular bed.