For years I assumed that it was just about axiomatic that marginally hardy plants would winter better if kept dry. That's is a very broad generalization. Four years ago I had to leave home for a month in mid-summer. There was a mad scramble to get potted plants into the ground so they would not dry out while I was gone. Among those were several pots of Rhodohypoxis. The Rhodohypoxis were planted in the bog trays; their companions were such plants as Sphagnum, Drosera, Sarracenia, various bog orchids, cranberries and so on. By the time winter rolled around, I had forgotten them. Four years later, some of them are still there, more or less invisible except when they bloom. The soil is either wet all winter or it's a block of ice. Jim McKenney Montgomery County, Maryland, zone 7, where the ground in general is still a block of ice.