My grandmother this coming spring will turn 92. She grew up picking cotton on other folks' farms in "LA, Lower Al'bama," south Georgia and N. Florida. She continues to "farm" to this day. Her vegetable garden-- heavy on peas, tomatoes, squash, sweet potatoes and peppers during the summer and collards, mustards and turnips during the winter-- is one of the things that keeps her going. Born in 1918, she "didn't fall off the turnip truck yesterday." Here she is in her garden harrowing a row with her five-year-old great-granddaughter, Mackenzie. Ever since I started growing vegetables when I was eight-years-old, food bearing plants-- and the eating that goes along with them-- have been one of the mainstays of our relationship. When we write letters, we always end up reporting on the state of our gardens, sharing things like the purchase of a new fruit tree or a bumper crop of collards. And when I visit her, the first thing after hugging is to dig i...