Kniphofia hardiness
Peter Taggart (Mon, 03 Mar 2014 14:19:32 PST)
The species I mentioned were largely without snow in the relevant two hard
winters when temperatures were between minus 15 and minus 18 C for many
nights.
Peter (UK)
On 3 March 2014 22:12, Ellen Hornig <hornig@oswego.edu> wrote:
Indeed, Ellen has since remembered a few more species that did well in the
snow belt: K. triangularis, K. baurii, K. typhoides, K. stricta. As far as
I know, snow is pretty much an unmitigated blessing for perennials over the
course of the winter.