Onions receive their cue to start bulbing from day length, and to grow onion plants that form full-size bulbs by harvest time it is important to choose varieties adapted to the maximum growing season of day length in your region. Johnny's offers a selection of full-size onions varieties for each of the three day-length adaptations: long-day, intermediate-day, and short-day. Use our Full-Size Onion Comparison Chart to select the best varieties for your region, and to compare bulb size, color, shape, adaptability, storage potential, and other distinguishing characteristics.
Big, mild white onions.
Adaptable intermediate-day onion.
New! Adaptable intermediate-day onion.
Unique pink specialty onion.
New! Unique pink specialty onion.
Now available organic! Huge, mild onions.