Onion sets are small, immature onions ... Harvest as soon as the foliage starts to yellow. Regular weeding is essential - because of the way their leaves are held upright, onions aren't good ...

Eating a yellow onion raw usually leaves a virtually impermeable ... They're also in season from spring until the cold sets ...

However, when it comes to choosing a type of onion for a particular job, as I confessed in my article about yellow onions vs. white onions, I often just go with whatever I have on hand.