When I posted the questions last evening I also sent a note to the Bayer Advanced question & answer department noted on their web page. I just received their reply which states:
"We would not suggest using the Bayer Advanced12 Month Tree and Shrub on Your Day Lilies since we cannot guarantee the results. What we do recommend using is the All in one Rose an Flower care. This product is a 3 systemic. When applied, it Fertilize-feed + Renews, Insect control an disease control one application protects up to 6 weeks. At this time we don't offer a product to be applied to seedlings."
That is why I posted the same questions here - - because I know some people are successfully using it. I'm sure that there is a liability issue if a company tells you to use a product in a manner that is not directly addressed on the product label. In the society we live in today, it is better to recommend something which may be less efficient than to actually suggest that their product could be used in a way other than addressed on the label and thereby risking a law suit. I'm glad I am not a lawyer that has to set up policies like this for a company or who has to defend them in a court of law!