Hi Teresa. Yes they do very well in zone 6b, they are alpine type plants so enjoy being covered with snow over the winter. If you have never grown them you might try acquiring a few that are already here in the U.S. to figure out where in your garden or containers they would do best. If you have hot humid summers they would want morning sun with filtered or bright light the rest of the day.
I look forward to seeing your new found planting experiment progress. Once you try them you will be hooked.
