Full-Size Onions
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.
Done
New
The best red onion for southern growers.
New! The best red onion for southern growers.
165 from fall planting
The famous juicy, sweet regional favorite from Walla Walla, Washington.
The famous, mild yellow variety from Walla Walla, WA.
Approx 300 late-summer sown and wintered over; 125 spring sown
Extremely long-storage yellow onion.
Extremely long storage yellow onion.
104 Days
The best onion for overwintering in the North.
The best onion for overwintering in the North.
90 spring sown Approx 270 fall sown in the North
Classic yellow OP strain, dependable and productive early onion.
Take advantage of our overstock position! Classic yellow OP strain.
98 Days
AAS (All-America Selections) Winners
Big, mild white onions from a widely-adapted day-neutral variety.
Big, mild white onions.
109 Days
Widely adapted Walla Walla type for growing farther South.
Widely adapted, mid-day.
Approx 290 if late summer-sown and wintered over; 110 if spring-sown
Attractive short-day; best red onion for overwintering in the North.
Attractive short-day; the best red onion for overwintering in the North.
100 spring sown Approx 160 fall sown in the South
The best onion for overwintering in the North.
The best onion for overwintering in the North. Conventional seed with NOP-compliant pellet.
90 spring sown Approx 270 fall sown in the North
Extremely long-storage yellow onion.
Extremely long storage yellow onion. Conventional seed with NOP-compliant pellet.
104 Days
Early yields of red onions without sacrificing size.
Early yields of red onions.
100 Days
Adaptable intermediate-day onion, very uniform and high yielding.
Adaptable intermediate-day onion.
107 Days
Short-day onion with excellent color and disease resistance.
Short-day onion with excellent color and disease resistance.
160 from fall planting
Superior red color, long storage.
Superior red color, long storage. Organic seed with NOP-compliant pellet.
118 Days
Superior red color, long storage.
Superior red color, long storage.
118 Days
Attractive, large, slightly-flattened bulbs with light-brown skins.
Attractive, large, slightly-flattened bulbs with light brown skins.
105 Days
Early yields of red onions without sacrificing size.
Early yields of red onions.
100 Days