May I ask what the plant names are that you have? We generally have most of the new intros where I help out at. Do you have any photos that you could post of the ones you are talking about?
Juli is right, some photos are really enhanced or they are taken in greenhouses (some hybridizers will tell you they are). But some daylilies will not perform the same in all areas. Heat, humidity, climate in general, fertilizing practices, among other factors do contribute to the way blooms act. Even on established plants I have noticed that sometimes they don't look the way they should until the rebloom scape or the color is not right because of something I added to the soil