frosted Narcissus collapse - why?
Arnold Trachtenberg (Mon, 01 Dec 2003 20:34:47 PST)

I think it is a defense mechanism to allow the plants to get close to
the ground and stay warmer. Fluid drains out of the green parts so as
not to freeze and burst the cell walls. When temps rise the sap returns
to the leaf and they regain their structure.

Arnold
New Jersey