I re-purposed my vegetable garden into an herb garden several years ago. I went from five 3' wide x 20' long rows to a labyrinth of sorts, identifying and planting each section with a specific purpose - culinary, aromatic, magical, astrological, medicinal, repellents, and (my favorite) the bitch corner (herbs helpful for female complaints). It has been a great experience so far - the first few years I just grew the herbs, noting their growth patterns and rearranging them. Many are thugs and/or get really large. I am slowly starting to harvest and use them for various tinctures and lotions, learning along the way. I still incorporate some vegetables in the garden, although I only grow what we can use fresh rather than freezing/canning. Ever evolving...