I grow H. Citrina and H. Dumortierii and this winter i noticed green shoots showing at the ground level on them. We have had a normal winter for avg temps but no extreme cold. Our coldest temp this winter was about 10F which is a little warm for a coldest winter temp. (we usually hit single digits a few times). H. Dumortierii is the earliest bloom daylily we grow by far. First bloom for it is usually mid April and no other daylily will bloom before late May for us in most years. I have lots of dormants, more than half of the 600 registered DL's and hundreds of seedlings. I paid more attention this winter than I normally do to their foliage. I have a couple of older Stout's that went completely underground this winter but most others could be found just above or at the the soil with green tips showing. We have had mild weather for about 3 weeks and everything but a very few have started growing very quickly. Several dormants have grown 6-8 inches in the past two weeks. H. Citrina is coming on more slowly as it is 2 or 3 inches tall.
Terry