Interesting conversation going on here between Sue and Zuzu.
John - I agree with Natalie that the ditch lilies are beautiful to many folks. I had 2 different ones Kwanso being one of them and I tried for 3 years to keep them alive. They didn't make it in my garden. But I have heard they can be invasive in many parts of the USA.
Ashton - Have you tried yet to cross a wild lily species with a ornamental hybrid? If so, did the cross take? Your comment above really perked my ears up!