VEGETABLES / JERUSALEM-ARTICHOKE-SUNCHOKE Distributed via tubers. See IA SSE HF profile for details. Oval-oblong shaped tubers have tan colored thin skin. Tubers measure 1-2.5 inches long and 0.5-0.9 inches wide. Accession: SSE 129887 Add To Basket Iowa USDA Hardiness: 4b View Profile & Listings