Mima, the reason I think (most) green garlic is gotten from planted scape "bulbs" is because of the size of the bulb when these green garlic plants are pulled. The cloves I plant are already larger than the bulbs shown in the pictures you posted. I have nothing against harvesting green garlic, but would simply never do it with my garlic. I just can't plant enough to pull it early. Don't forget, what I sell pays for next years crop and for eating great garlic year-round.
I am nothing close to an expert here, and you already know my ignorance concerning green garlic would indicate this. I just grow the stuff for the big, flavorful, pungent cloves.
