Chamblee sells this as 1 gal own root. (Where I purchased mine) In 6b WV it had zero winter damage (2017/18 bad winter with Feb warm up dipping back to cold), and is putting up laterals now on the main canes I trained horizontal after I planted it last spring. I hope more people chime in, because this is an excellent rose in every way. Huge opening layer cake blooms. It's the first climber I would recommend to someone. I never sprayed it, and it only had a couple old leaves spot. Mine is planted out in the open, where it got wind 24/7. I suspect it would do ok for someone in a colder zone.