Karl Trepka wrote:Hi
i think potato onions are Allium Cepa and the walking onions are Allium proliferum.........i'm not sure if they will hybridize.
keep in mind plants in the same species can changed dramatically when domesticated......silver beet, beetroot and sugar beet are all the same species.
Then I better stick with my walking onions -I am growing them first time this year. So far I just ate their greens, which are very good, even if they are larger than most.