I recently planted fava beans as a cover crop. The seed was purchased from the bulk bins at a natural foods store but I do not believe it is organic. Anyway, one of the plants emerged yellowish white. I don't mean spotted or that the leaves started turning yellow after a while, but truly the whole plant is yellow/white. Has anyone heard of/ experienced this. I can not find any info on the web. Just curious. Maybe I'll save the seed instead of digging it in. Thanks.