At least one form of Sauromatum venosum (properly Typhonium venosum) winters reliably in the Boston area (USDA zone 6). Russell 02:35 PM 6/16/2011, you wrote: >Alberto, the Dracunculus is hardy. I've had it in the ground for a >number of years. > >The Sauromatum is not hardy and must be dug every fall for storage in my >unheated, attached garage (cold but above freezing.) Russell Stafford Odyssey Bulbs PO Box 382 South Lancaster, MA 01561 508-335-8106 http://www.odysseybulbs.com/