Well, in this case, the garden structure is very formal with geometric beds, garden "rooms" for fruit trees, etc. It's planted with looks in mind, so it's as beautiful as it is tasty. And they plant vegetables that look interesting, i.e. red okra, which might visually play off of some collards or rhubarb. Michelle intersperses ornamental flowers and plants with the vegetables. It makes it visually interesting, plus, because she's growing food, she can water the flowers along with the vegetables (something you normally wouldn't get to do in a drought). And she plants a lot of flowers that you can eat, like nasturtiums.
On Saturdays, she has a booth at the fresh market in the Marietta Square where she sells edible flowers and fresh vegetables. She always sells out!