Thanks to a very generous friend, my family and I own an oak tree in Provence. Nestled in the thickly wooded hills of the Luberon between Lourmarin and Cadenet, is a large organic farm called Les Pastras (which means “the pastures,” in Langue d’Oc, the old Provençal language). There, grows our little tree. Les Pastras is now under the diligent care of Lisa and Johann Pepin, having taken the reins from Johann’s grandparents who purchased the farm some forty-five years earlier. It is comprised 11...