I truly believe that registering daylilies as SEV comes from two divergent directions. It maybe the hybridizers are too lazy to watch and tell the difference or it may be a marketing ploy. In Januay/February, even in FL, it's very, very easy to tell which plants are EV or dormant or on the dormant side of SEV. The advantage of labeling a daylily as SEV would appeal to a exponentially larger market than labeling it as an EV, the inference being that SEV plants can be grown in a wider portion of the U.S. Yes, I have become very cynical on this subject.