Many onions are fast-growing and love cool temperatures, so these are another quick spring harvest. Scallions only take 10 to 12 weeks. And if you want to grow regular onions, start with “onion sets,” which are tiny immature onions. They’ll be ready almost as quickly as scallions, about 14 weeks.
By the way, these last three items—carrot thinnings, new potatoes, and early onions—are the traditional ingredients in the Dutch dish hutspot, which is the root of our word “hodgepodge.”