Best known as an ingredient in pies and tarts, rhubarb is a perennial with edible celery-like stalks. The leaves contain high concentrations of oxalic acid and should not be eaten. While rhubarb is sometimes eaten raw with sugar sprinkled on it, most uses for this plant are in recipes where its tart flavor is a unique addition. Because it is perennial, choose a permanent spot in your garden for rhubarb.
Plant crowns in spring as soon as soil is workable. Tuck plants into slightly acidic soil rich in organic matter. Rhubarb crowns require shallow planting, but because plants are such heavy feeders, you should dig planting holes at least a foot deep. Water newly planted crowns, and keep soil moist throughout the growing season. As summer heat arrives, mulch plants with a 2-inch-thick layer of organic mulch, such as compost, straw, or shredded bark. Replenish mulch throughout the growing season as needed to maintain 2-inch thickness.