Another Amorphophallus autumn question
I have posted here before with newbie Amorphophallus questions. My two konjacs have died down, and my unknown is currently dying down. The 3rd plant is an A. madagascariensis, which is still as green as can be and just put out a new side shoot. As winter will soon be here in NJ, should I epect this one to begin to die back soon, shall I let a frost kill the top, or will I have to bring it inside when the weather gets too cold.
Also, I know konjacs can be stored bare on a cool shelf. Can the other species be treated the same when dormant, should I pack them in dry peat moss, or is there a better storage method?