Here the few growers give as a fact that a DL is an evergreen in the south and dormant in the north, so I really never thought about it. It's because of cold. The one that really has been dorman until now is Stella de Oro, the others stayed semi or evergreen, but we didn't have a really freezing winter, so I will see next how things will go. The growers gives the same details for every DL no difference in cultivars, hemerocallis genus is known for its dry, cold, hot resistance, and that's it. Too simple?
I noticed the few I divided to give as a little gift to my sisters this year didn't grow much, they look just seedling, so I guess I should not disturb them (mine are quite young, bought bare roots and planted in march 2014).
