It\u2019s the time of year when many people feel an overpowering urge to dig\u2014to plant their back yard or vegetable garden, or even the flowerpots on the fire escape. \u201cI just love the whole process. I love the muck of it,\u201d Jill Lepore tells David Remnick. \u201cYou\u2019re kind of entrapped in a completely different rhythm, and it\u2019s all so entirely out of your control. \u2026 It\u2019s a never-ending process of education.\u201d Lepore, a professor of history as well as a staff writer, wrote recently on her passion for seed catalogues, and shares a couple of things she\u2019s excited about growing this year.