Originally posted by obywan59:
Deborah, potato onions or multiplier onions are an old fashioned onion that you can keep for years and years without buying any new sets. The key is to plant 2 different sizes.
When you plant the small "onion set" size, they will mature as large 3-4" onions. When you plant the large 3-4" onions, they will split into many "set" size onions which you then save for replanting in fall.
Ok..explain this to me better. I have multiplying onions in a separate bed, I got them from my mother last
spring....these never grow big onions...but do make the top sets, which are about the size of the onion sets you buy at the store. I have not used any of these, as I am waiting until they make top sets so that I know they will be multiplying first.