Much of my veggie garden is in the front yard. There's a fine line between ornamental and not, but pretty much everything I grow is edible.
This year, I did a row of soybeans along the sidewalk. Definitely got comments from the neighborhood dog walkers on that one. Melons and pumpkins get a lot of attention from kids, who like to look through for the fruits.
I'm growing two new hot peppers this year which are both tasty and gorgeous. Fish is a variety with variegated foliage and unripe fruits, and Maui Purple has foliage and unripe fruits that are a deep purple color, both ripen red. I think I'll put them in a more visible spot next year.
In the old flower beds, I have blueberry, bush cherry, and trellised kiwi plants. I had saffron crocus in there too, but it wasn't thriving, so I might move it down nearer the street.
In front of my fence (highly visible from the street), I grew sunflowers and okra this year. I think they're both attractive plants, but I actually got more compliments on last year's corn plot in that location, go figure.
And of course, herbs. I have rosemary, lavender, and pyrethrum (not edible, but a good companion) closest to the street, but I also have a variety of attractive basils, bronze fennel, even something like fernleaf dill can look really nice.
