Vegetables Onions Full-Size Onions
Two large, red onions on a cutting board.
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.
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Rossa di Milano Full-Size Onions
Our superior strain of this classic, long-day Italian OP.
Our superior strain of this classic, long-day Italian OP.
100 Days
New
Calibra Full-Size Onions
Hard, intermediate-day storage onion for more Southern latitudes.
Hard, intermediate-day storage onion for more Southern latitudes.
110 Days
New
Red Carpet Full-Size Onions
Vibrant red, long-day storage onion.
Vibrant red, long-day storage onion.
115 Days
New
T-448 Full-Size Onions
Earliest long-day overwintering onion for the North.
Earliest long-day overwintering onion for the North.
95 spring sown Approx 265 fall sown in the North
New
Blush Plants Full-Size Onions
Unique pink specialty onion.
Out of Stock
Unique pink specialty onion.
115 Days
Exceptionally long-storing yellow onion.
Exceptionally long-storing yellow onion.
104 Days
The famous juicy, sweet regional favorite from Walla Walla, Washington.
The famous juicy, sweet regional favorite from Walla Walla, Washington.
Approx 300 late-summer sown and wintered over; 125 spring sown
Classic yellow OP strain, dependable and productive early onion.
Classic yellow OP strain, dependable and productive early onion.
98 Days
Widely adapted Walla Walla type for growing farther South.
Widely adapted Walla Walla type for growing farther South.
Approx 290 if late summer-sown and wintered over; 110 if spring-sown
Early yields of red onions without sacrificing size.
Early yields of red onions without sacrificing size.
100 Days
The best red onion for southern growers.
The best red onion for southern growers.
165 from fall planting
AAS (All-America Selections) Winners
Sierra Blanca Full-Size Onions
Big, mild white onions from a widely-adapted day-neutral variety.
Big, mild white onions from a widely-adapted day-neutral variety.
109 Days
Attractive short-day; best red onion for overwintering in the North.
Attractive short-day; best red onion for overwintering in the North.
100 spring sown Approx 160 fall sown in the South
Vibrant red, long-day storage onion.
Vibrant red, long-day storage onion.
115 Days
Exceptionally long-storing yellow onion.
Exceptionally long-storing yellow onion.
104 Days
Organic long-day storage onion.
Organic long-day storage onion.
104 Days
Dependable short-day onion.
Dependable short-day onion.
150 from fall planting
Long harvest window.
Long harvest window.
106 Days
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