Hello Alessandro, RHS Book of Bulbs gives:- All Griffinia are " frost tender". and suggests winter minimum of 10 degrees C (50 degrees F) for all species, but does not list G. espiritensis. Regards Hamish -----Original Message----- From: maporfido [smtp:///maporfido@libero.it] Sent: 21 October 2007 14:29 To: pbs@lists.ibiblio.org Subject: [pbs] griffinia you excuse me for my english, than minimal temperature the griffina (liboniana and espiritensis) can resist? Alessandro Marinello zona 7-8 Italy