The problem is the EU import requirements, which appear to have just got worse, see the following (note daylily - Hemerocallis - is on the list):
European Union to Prohibit Entry of Over 160 Plant Species:
http://www.amerinursery.com/gr...
There are people who hybridize and sell modern daylilies in Europe, you might try contacting these European organizations listed by the American Hemerocallis Society.
http://www.daylilies.org/ingro...
I don't know if the Xylella issue also applies to daylilies from Canada so that might be a possibility to look into if you want to buy direct from North America, there are several Canadian daylily hybridizers. I don't know what the situation is with irises but I don't see them listed on the Xylella list above.
