I have several of my clematis, Ramona and Crystal Fountain that I prunned lightly about a month ago and tonight the temp is suppose to get down to around 26degress, these two clematis has already set bloom buds, I can't recall over the years if 26 degress have ever hurt them before, should I try to cover them up or should they be ok? I just can't remember at what tempature should I not worry about them.. I have 25 plus but these two are the only ones that have aready set bloom buds.. They are both on trellis's that I guess I could wrap a blanket around. For some reason I'm thinking 18 to 20 degress they should still be fine within covering up. What do some of you do when buds are set and a cold front comes through? The other's I have placed 5 gal buckets over because they are hard prunned down low enough to cover with buckets.