I have tried very hard to find an actual study of the percentage of problems with Tissue Culture daylilies, but I have been unsuccessful. I do see a lot of reports of problems but it seems anyone who has bought a daylily in the past few years that did not look right blames it on Tissue Culture problems. Finding any data not over several years old has been impossible, so I continue to wonder if the kinks have been worked out, and now even daylilies can successfully be tissue culture produced reliably.I did see that now hundreds of thousands of daylilies are produced by tissue culture every year, just assuming that is correct, they must be selling them and not having tons of problems. But, I have no way of knowing with out some scientific testing and reporting being done, I would think with hundreds of thousands being sold, surly some major university would have received a grant and published the results by now. Maybe someone out there has this information? Any USDA studies, I would think this would be of interest to them.
