Earlier this year, I bought some hellebores (Helleborus niger hybrids) to plant in a shady spot near my Magnolia tree. I promptly forgot them, partly because of being ill for a couple of weeks, partly because of other plants growing up and around where I'd left the pots by the time I'd recovered.
With things dying back for winter, I've rediscovered the hellebores still in their 6" (15cm) nursery pots and wonder what I should do with them. I live in Portland, Oregon (USDA zone 8b) and we've already had our first frosts. The winter weather here is usually wet rather than cold, but we frequently have stretches where the temperature doesn't get above freezing for several days at a time.
Is the end of November too late to plant them in the ground? Should I bring them indoors for the winter? If I leave them outdoors, what should I do with them during cold snaps?