I replaced my Jack Frost Brunnera last year convinced it succumbed to the particularly brutal winter. It had been in place happily for a couple years. The new Jack, robust and purchased from a good nursery, has not appeared and I don't see any sign of it. Our winter was bad but we had really good snow cover.
anyone else have problems with this plant? here it is 5.09 (middle right) - deciding whether to buy it again