Rhubarb | CHEFS In Season Rhubarb, with its tart, celery-like edible stalks or petioles topped by large triangular-shaped leaves, is the prolific and long-lived perennial that graces our vegetable gardens and landscapes. In many U.S. regions, rhubarb's emergence is a familiar and welcome harbinger of spring. Login Login 0 repins 0 comments 0 likes