In a message dated 10/17/2005 2:15:27 P.M. Eastern Daylight Time, crinum@libero.it writes: may I grow them assuring not less than 32°F in the winter nights? I usually heat and I have a minimum just over 0°C (=32°F). My regards. Alberto All of the Paedranassa I grow have survived brief dips down to 24F and do fine in a frost free greenhouse.