Hi Jim, I have three ssp./forms of Arum dioscoridis flowering in the garden at the moment. They have flowered for the last 3 years and seem reliably hardy. I also had Arum creticum flowering in a couple of places as well - this one surprised me. They have been outside for 2 winters. If anyone has a spare piece of the form named after Norman Stevens I would love to trade for a piece! Thanks, J. John T Lonsdale PhD 407 Edgewood Drive, Exton, Pennsylvania 19341, USA Home: 610 594 9232 Cell: 484 678 9856 Fax: 315 571 9232 Visit "Edgewood" - The Lonsdale Garden at http://www.edgewoodgardens.net/ USDA Zone 6b