Another plant, Verbesina virginica, is known for producing curls of ice around its base in the Autumn. This plant, Helianthemum canadense (aka Crocanthemum canadense), would be expected to do the same but apparently does not. I searched the net a bit for both images and descriptions of ice on the plant but came up empty. Possibly it does but I’m surprised there are no reports (at least in my search) so am doubtful. Must have got its name in some other way.
A lovely flower, frost or not.