Dennis, It all depends.... The two rootless bulbs should be kept warm and potted but barely moist until they either sprout roots or die. Either one may take a while. Don't keep them cool. They probably need roots before they can make healthy leaves. I would have assumed that after 8 hours at 10 F, all were DOA, so I'm really surprised that some of them seem to be alive. Again, heat (e.g., 70 to 80 F) is the thing that should help the most. Keep us posted. Jim Shields in cold and snowy Westfield, Indiana USA At 03:45 PM 2/16/2010 -0500, Dennis Kramb wrote: >I am trying to grow 4 bulbs of Hippeastrum roseum. The bulbs of this dwarf >plant are golf ball sized. After weeks of waiting, two of them started to >produce leaves, which promptly withered to brown and now black. The bulbs >seem firm, but have no roots. The leaves only grew a few millimeters before >dying. > >The bulbs arrived during a severe cold snap. They were outdoors for at >least 8 hours in freezing temperatures (if I remember it got as cold as 10 >deg F that day). > >I'm not sure if these bulbs were effectively DOA, or if I'm doing something >else wrong (i.e. over-watering) that is killing them off. At any rate, I >have two more that might survive. I'm tempted to unpot them and store them >a couple months in a cool dry dark place. > >Do you guys have any other suggestions? > >Other varieties of Hippeastrums that arrived in the same package are sending >up flower stalks... and others are still totally dormant. It's a bit >perplexing. ************************************************* Jim Shields USDA Zone 5 Shields Gardens, Ltd. P.O. Box 92 WWW: http://www.shieldsgardens.com/ Westfield, Indiana 46074, USA Tel. ++1-317-867-3344 or toll-free 1-866-449-3344 in USA