I don't know what the answer is, but I have also read that scarlet runner
beans are perennial in their place of origin, which I presume is somewhere
in Mexico. However, at least one of my sources says that they are most
productive in their first year, so I don't know if there is any benefit to
trying to winter them over.
"al" wrote in message
...
Umm... If one digs up Runner Beans at the end of their season and stores
over the winter, do the plants
retain their vigour. I do not know of any gardeners who treat Runners as
perennial. I have only
read about the practice. I am curious to hear from anyone who treats
Runners as perennial.