Bean cross pollination Community › Community › General Gardening › Vegetables › Bean cross pollination This topic has 1 reply, 2 voices, and was last updated 7 years, 10 months ago by charles. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts 28th October 2018 at 7:38 am #49634 GuyParticipant Morning Charles This year I grew my usual White Emergo beans in a bed with various french bean varieties and some borlotti’s and about 30% of the Emergo produced completely black beans inside instead of the usual white! Is this cross pollination? 28th October 2018 at 7:37 pm #49646 charlesModerator I don’t think that runners cross with French, am not 100% sure though. Possibly there was some “black bean” gene in the seeds you sowed. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In