As applied to Hemerocallis, it simply means that divisions or proliferations of a particular plant (clone) have not been distributed, and are being grown only in the garden in which the plant originated.
Undisseminated
The American Daylily Society
As applied to Hemerocallis, it simply means that divisions or proliferations of a particular plant (clone) have not been distributed, and are being grown only in the garden in which the plant originated.