My scallion bed has never lived up to expectations. I started it with an heirloom from a friend four years back, then added another from seed (I forget which) three years ago, and then added Evergreen from seed this year. None of them has ever produced anything like scallions one purchases in stores (which I love); in fact my better successes with green/bunching onions/scallions is with harvesting my bulbing onions very early over a period of 2-3 weeks. Copra, Varsity, Gunnison, Redwing, and Mars all produced decent but not perfect Â scallions.
Martin has graciously sent me two varieties of topsetting onions which I will try and integrate into my scallion bed (perhaps even encourage them to take it over).
I am interested in forum strategies to starting and maintaining a green onion bed with an eye towards producing traditional market-style scallions for as long a harvest period as possible, including which varieties I should try.