Hi Jerry, I've seen this a lot myself, especially with seeds from Conway's Doris. My hypothesis is that in these plants, the healthy green tissue fails to share glucose with the "sickly" yellow tissue, and simply overgrows it, crowding it out. Just my guess... Jim Shields At 02:08 PM 8/27/2011 -0400, you wrote: >Hi, can anyone tell me why clivia seedlings, that start out variegated, and > grow as variegated seedlings for about three years, eventually become >solid green plants? I have a few of these; others from the same batch are >still variegated...two out of six seedlings are now solid green. Thanks. > >--Jerry Lehmann >Olathe, KS, USA ************************************************* Jim Shields USDA Zone 5 P.O. Box 92 WWW: http://www.shieldsgardens.com/ Westfield, Indiana 46074, USA Lat. 40° 02.8' N, Long. 086° 06.6' W