PlotPal

Jerusalem Artichoke

Jerusalem Artichoke is listed botanically as Helianthus tuberosus. It may also be listed as earth-apple, sunchoke, topinambur, artichoke. Tall sunflower relative grown for crisp, nutty underground tubers. Jerusalem artichoke is productive and cold hardy but can spread aggressively from tubers left in the soil. PlotPal's canonical care record lists full sun and moderate water needs. The current taxonomy reference places it in the genus Helianthus and in the family Asteraceae. Its source-backed growth habit is listed as forb/herb. PlotPal currently carries Jerusalem Artichoke as an outdoor growing and vegetable reference. Recorded garden roles include food crop. Growing note: Plant tubers in full sun and give plants space to form a tall stand. Harvest after frost once tops die back, and expect regrowth from any tubers left behind. Use physical barriers or dedicated beds if spread would be a problem. Propagation or sowing note: Plant small whole tubers or tuber pieces with viable buds in spring. Plant-health prevention note: Rotate plantings where possible, avoid waterlogged soil, and remove diseased stems rather than composting badly infected material. Pest-prevention note: Protect young shoots from slugs and monitor underground tuber damage from rodents in problem areas. The current reference lists an average harvest time of about 120 days, where harvest timing applies. Common pests in the reference include Aphids, Slugs, Voles. Common plant-health issues in the reference include Sclerotinia stem rot, Rust, Powdery mildew. Use this guide as practical growing context, then adjust decisions to the actual weather, soil, container or bed, variety, and conditions in your garden.