Carolyn,
I planted one last spring. Because I was concerned about it, I waited for it to get cold then mulched it fairly heavily. Because we didn't get any snow cover, over the course of the winter most of the mulch blew off, so I mulched it again this spring. It did work, as I have a fair amount of top growth coming up already. I don't love mulching, but I am willing to do it for some plants....maybe this is one of them.
Jennifer
