Hello all.

Some time ago, probably in July, I found an onion in my vegetable rack
which had sprouted green shoots.

Out of curiosity I planted the onion in my front garden and it grew about
10 large long thick leaves that wilted and died , and also 2 large stalks
about 3 and a half foot high.

Each stalk has a round ball flower type thing on the top.

Now I see that one of the flower balls has small green shoots coming out
of what appears to be very small onions in the head of the flower.

What do I do next ?

I know absolutely nothing

fray bentos the non gardener