Hey David,
I have not heard that BAPPING the crown is bad for them. I know quite a few people that use it and have not seen a sterile one yet because of BAP. Now if it is over used or used too strongly then it can be harmful and may make the pollen no good
We use BAP on our club auction plants so we will have plenty for all the members to bid on with their club dollars they have earned and I own several of these BAPPED daylilies and haven't seen a decrease in bud count or vigor. Not to say it's not true for some daylilies, however, I have not seen it in mine.
I agree that the best way to increase daylilies is water and nutrients also. But chemicals do have their place as well.
