Why Not Grow Onions from Seed?
Seeds are harder to establish then transplants. The time between planting seed and harvesting is too short to make large bulbs in several areas of the country. Generally, a transplant with four or five leaves can be planted at the same time as seed, so you get a head start on making large bulbs. Seeds do offer more varieties; however, and they can be started in greenhouses to produce transplants. What Is the Difference between an Onion Set and a Transplant? An onion set is a small bulb, stored from the previous year’s onion crop. A transplant is a plant between 10 and 20 weeks old that has not been through the bulbing process. An onion is a biannual, which means it has two lives. In its first life it grows from seed to set, and in its second life it produces a larger bulb. Sets are usually quite pungent and only good storage types can be kept for next year. A transplant is much less likely to bolt or go to seed than a set. What Is the Difference between a White Onion and a Yellow Onion
