Jim asked, >I would like advice on how to raise Lilium washingtonianum from >seed. At present the seed is in a zip lock bag with damp perlite and >vermiculite in the refrigerator. At what point do I pot them up? >Sunset zone 9 west of Modesto California. I haven't raised Lilium seedlings this way, I just grow them in the ordinary way in seed pots. However, I would warn Jim that Lilium washingtonianum is usually difficult to grow at lower elevations. It naturally grows at mid elevations, within the snow zone, and does best with a rather dry winter dormancy and cool summers. The latter would be hard to achieve in the Central Valley of California where he lives. In addition, it grows in acid soils, usually rocky and often on steep slopes at the margin of conifer woodland. Jim might find the rather similar Lilium rubescens more growable in his region. Jane McGary Portland, Oregon, USA