On Feb 4, 2013, at 12:27 PM, Dennis Kramb wrote:

Years ago Tomas Tamberg made the same cross and showed that it can
be done, but he too had only a single PCN to work with since they are very
difficult in Germany. I do hope more people will cross modern multi-
generation PCN hybrids with I lactea to get a new generation of easy to
grow Iris with at least some of the characters of todays PCNs.