Mary Sue, I can't offer an answer but have a similar experience. Three years ago all my seedlings of Corydalis ornata were white or very pale yellow, even though growing in good light. They germinated next to other Corydalis species which behaved perfectly. The ornata did not go on to make bulbs, they just hung around a few weeks then faded away. I guess it must be genetic in this case as there were no environmental factors that could account for it. J. Dr John T Lonsdale 407 Edgewood Drive, Exton, Pennsylvania 19341, USA Phone 610 594 9232 Fax 801 327 1266 Visit "Edgewood" - The Lonsdale Garden at http//http://www.johnlonsdale.net/ Zone 6b