Do multi-stem scallions really give the best yield/space?
I garden out of a small ( ~200 sqft) urban plot in Seattle. My wife and I cook with scallions constantly- they are something that we always have in our fridge. I would like to grow some, but the truth is the single stem varieties seem to occupy more space in our small plot than would be worthwhile; we'd probably eat a season's worth of plantings in a couple of weeks or so. But today while visiting my parents in the southeast US I harvested some multiplier onions (at the scallion stage) that my dad is growing... I think that they are meant to be harvested only as scallions, but I am not sure. I am talking about onions that divide in the ground to produce multiple stems per planting. Anyway, they seemed to have a high yield to space ratio. Would any of you say that multiple stem scallion varieties tend to yield more overall than single stem scallions, or is it about the same mass divided into smaller stalks?
(We use both the whites and the green leaves, but I suppose that having a lot of green leaves would be a plus for us.)
Thanks for the advice!