Violet wrote:

We had very strange weather, first it was very warm for couple of
weeks, so plants started coming out outside, and then temperatures
went down and it was even snowing once. Everything pretty much
survived, however my daylilies look kind of strange - their leaves'
ends are almost white and some are like wrinkled. Did anyone have the
same experience, or do you think the daylilies will be ok?

My plants experienced the same here in the Catskills, a little frost
is not killing to hardy and established perennials like daylilies...
the plants simply go back into winter hibernation and wait for warmer
weather. Some plants will accrue some frostbite damage but with new
growth those few bits will quickly slough off unnoticed. In fact that
type of exposure makes plants stronger.