sooby said:How large a pot, Maurice? When I've wintered them sunk in the ground they wouldn't have been large pots (typically the size retailers sell them in) and the plants were well established in those pots.
admmad said:
The plants arrived in August and were put into pots dependent on the size of the plant, especially the crown and roots. The pot diameters would have been from 6 to 9 inches.
sooby said:When I've done this before, and it's years ago now, it would most likely have been with plants I purchased potted, at least some of them from local daylily sellers so they wouldn't have been shipped.
I don't know why it would have worked for me and not you, unless it has to do with the origin of the plants, and/or the media used, and/or winter rainfall frequency or amount, and/or difference in native soil. It is sandy loam here, am I correct in thinking you're on clay?