Same here Olive. I did buy some frost coverings last year to cover shrubs like my hydranges and flowering bushes...seems like they started budding and growing and then WHAM we get a hard freeze and then I get no flowering on them. Since I didn't cut back my Butterfly bush's and the rest of my perennials...if I do it NOW and we have freezes...will that hurt the planst?? I don't think so but am not sure.