I have a variegated Kwanso and had two clumps. One clump is still variegated the other is no more. In my experience it is best to remove the plain green growths as they grow much stronger and faster than the variegated plants and will eventually take over. This is a crappy photo of another daylily I had that had a thin white line much like White stripe. It too has completely lost the variegation to the more robust plain green foliage. Please excuse the weeds!
