Jerusalem artichoke jerusalem-artichoke Jerusalem artichoke (Helianthus tuberosus) is a hardy, perennial sunflower grown for its edible, knobbly tubers rich in inulin. It forms tall, bamboo-like canes and spreads by underground rhizomes. Very cold-hardy and drought-tolerant once established, it can become invasive if not contained. Grown as a perennial patch or as an annual crop from tubers. Flowers are small, yellow sunflowers late in the season. Tubers are sweetest after frost and have a nutty, artichoke-like flavor. Growing conditions LightFull sun (6–8+ hours). Tolerates light partial shade but yields best in full sun. Soil typeLoose, well-drained loam or sandy loam rich in organic matter; avoid heavy, waterlogged clay. Water requirementModerate. Keep evenly moist during active growth and tuber bulking; mulch to conserve moisture. Nutrient requirementLow to moderate. Responds well to compost; avoid high-nitrogen fertilization which promotes tall, lanky growth over tubers. Back to plant list
