Tiny onions, grown the year before, pulled up early and dried out, are known as onion sets. They’re a bit of a shortcut. Pop them in the ground, and they begin growing again. Starting onions from seed gives you a lot more choice in variety, but it also means taking up indoor space under the lights to produce seedlings. When you simply want…onions, in the tiny market garden, onion sets is a quick and easy way to go!