sooby said:
Unfortunately daylilies have been recorded as a host of Xylella fastidiosa, see Table 1 here:
https://apsjournals.apsnet.org...
There's an article on its possible cold hardiness in Europe here:
https://www.nature.com/article...
Hello Sue - thanks a lot for this helpful information!
sooby said:Have you thought about purchasing daylily seeds of the lines you want from North America?
Up to now I've only got seeds from the AHS seed donation program but in addition I'm working on this issue for some months - at the moment I am looking for newer recommendable cultivars that can be useful parents.
I know that Jim Murphy is working on season extenders too and I've some of his plants here but they are all spiders and ufos, is there another hybridizer in the US with a focus on late/very late cultivars?
sooby said:Also some of the species daylilies flower quite late.
Up to now I used H. fulva littorea, H. fulva kwanso and H. fulva rosea (very late/late) as parents but the seedlings I've got until last year were not impressing - the crosses with frozen pollen from midseason bloomers did not bloom yet, maybe they look better and flower late?
Can you recommend another late flowering species?
