I got a chance to speak for the Butler County master gardeners. Had a great time and I hope they enjoy it too! I just wanted to make clear that you should feel free to mix vegetables, herbs, fruit and flowers together in your garden whether you call it a kitchen garden or just your garden. My message got lost in wanting to give them other information. The garden above is from Surreybrooke off of I-70 in Middletown, MD. A great family owned establishment! Please keep these kinds of nurseries going!
One of the definitions of kitchen gardens is that it has an enclosure meaning a fence or wall or other enclosure, an entry gateway, a path system whether it is an "X" or a "T" or a cross to define the beds and a rich mix of vegetables, fruit, flowers and above all (my words) herbs!