"We have ours planted in a full sun rock berm (west-facing slope), amended with small gravel...no winter protection. I don't think we have dropped below 8 degrees F since we have grown it." Tony - how much moisture will this location have in summer? Thanks, John John T Lonsdale PhD 407 Edgewood Drive, Exton, Pennsylvania 19341, USA Home: 610 594 9232 Cell: 484 678 9856 Fax: 801 327 1266 Visit "Edgewood" - The Lonsdale Garden at http://www.edgewoodgardens.net/ USDA Zone 6b