Viewing post #587282 by Polymerous

@Tink - Thanks for that reassurance. Given that Dawn can be used at low concentration for rust, I should have known that... but I was thinking about the Dawn-laden water being soaked up by the roots.

@Vickie - I have overwintered daylilies in tubs and buckets of water. Most of them survive. (The trick is to keep an eye on the water level, and make sure the crown does not get submerged. I am not always on top of this.) Our winter temperature rarely dips below freezing here (unlike in Indiana), so if the water in the tubs *does* freeze, it is not for long, and thus not something that I need to worry about. (I recall one such time, early on when I first starting buying daylilies mail-order, when the water was (at least partially) frozen. I was shocked and horrified to discover the "frozen" daylilies that morning, but the daylilies came through just fine.)