We celebrate the first day of spring by talking to chef and author Georgia Pellegrini about why everyone can and must plant their own edible garden now, even if you are crammed in a small apartment. Her new book, “Modern Pioneering,” is out now. We also talk to social entrepreneur Narimon Safavi about the foods of the spring festival Nowruz. And we finally settle the argument between Monica and Louisa over the ethics of picking wild garlic in the forest.