Hi Jim, The Narcissus Nylon have survived a few winters then died out, which could be due to factors other than temperature such as insufficient feeding. I've taken that last to heart and am now adding more fertilizer. Jim -----Original Message----- From: Jim McKenney <jamesamckenney@verizon.net> To: Pacific Bulb Society <pbs@lists.ibiblio.org> Sent: Fri, Jan 6, 2012 2:38 pm Subject: Re: [pbs] What's in bloom - Narcissus Nylon culture Jim Jones wrote: "The Narcissus has been marginally hardy in a greenhouse environment here that goes to 15oF." Jim, what do you mean by marginally hardy in the greenhouse. Do some of the 'Nylon' plants sometimes die during the winter? Jim McKenney