So here's what's in the picture: Chives, Italian Parsley, Basil, Eucalyptus, Calibrachoa (Double Deep Yellow and Dreamsicle), and Ivy Geranium (Pink Variegated and Burgundy Bicolor). It's fine to mix flowers and herbs--I do it all of the time because we use a ton of herbs for cooking so one pot with herbs isn't enough. I have them sprinkled among all of my mixed plantings.
So give it a try. Be bold. Mix it up.
Bookshelf: Container Gardening Books