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Hi, Can any of the experts tell me the name of a runner bean that has blue seeds then turn to black when dry please, as I would like to buy some, my Father gave me some of this seed many years ago, and I would like to grow again next year, cannot ask him as he died five years ago, Thank's.

Hi Petengade and welcome.
I'm sorry I can't help you on this answer but the more experienced gardeners will be along later, I'm sure

Lauren  :)

Many runners have black seeds Petengade... how blue is blue when fresh?
:-\

Saddad, seed was nearly purple turning to black when dry, and beans were very long before the seed began to form.