It is a cool idea Gumbo has to cut the scallions from the supermarket or, do the cut-and-come-again from your own onions. The latter would probably work better in a long-season area. Sorry to say,

I haven't tried either way.
soil wrote:if hes talking about green onions tell him to go buy a packet of bunching onions and let them do the multiplying. or regular onions and plant very thick, then thin them out over winter and spring so eventually they all have space to mature for bigger onions.
my 2 cents
There's the idea, a sweet onion like Walla Walla makes a very nice green onion while still immature.
I have grown "bunching onions" for many years: starting off with Evergreen, and then trying Nebuka and He-shi-ko. Actually, I think the 1st 2 names might be used by the seed companies for the same variety (or, the same
class of onions).
I've had Tokyo Long White in my garden the last few years. You have to be willing to peel away the outer leaves when they become coarse on these bunching onions but they can be used right thru the season - once they've made some growth.
More
refined are Four Seasons and Gallop. These compare well with any green onion you could buy in the soopermarket. I think Stokes Seed Company may have all of these varieties.
The problem I've had with the refined ones is that germination seems poor by comparison. With the others, it seems like every seed comes up! Of course, with all the thinning that is required - one may not
want every seed to come up.
Then, there are sets . . .
So, there are lots of choices. If I was to only buy seed for 1 variety, I think it would be a good sweet onion and just go from harvesting the immature onions for salads to having nice bulbs for later in the season

.
Steve
We are each other's harvest; we are each other's business; we are each other's magnitude and bond. ~ Gwendolyn Brooks