Can mums be over wintered outside in the planters they are in or do they have to be put in the ground?
Hi Cathy, I assume you mean hardy mums? I don't know about your zone but here in zone 3 the only chance they have of making it is if planted in the ground, and a good snowcover over winter. Even some hardy ones are borderline hardy here.
Thank you Glen3a. I live in zone 4 and on the second floor with a balcony so in the ground isn't an option; but I think you're right. There's no sense in trying to save them. They don't look so good anyway.