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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Calibra Full-Size Onions
Hard, intermediate-day storage onion for more Southern latitudes.
New! Hard, intermediate-day storage onion for more Southern latitudes.
110 Days
New
T-448 Full-Size Onions
Earliest long-day overwintering onion for the North.
New! 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.
New! Unique pink specialty onion.
115 Days
New
Rossa di Milano Full-Size Onions
Our superior strain of this classic, long-day Italian OP.
Out of Stock
New! Our superior strain of this classic, long-day Italian OP.
100 Days
Out of Stock
Extremely long-storage yellow onion.
Extremely long storage yellow onion.
104 Days
Extremely long-storage yellow onion.
Extremely long storage onion.
104 Days
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.
109 Days
Vibrant long-day red storage onion.
Vibrant long-day red storage onion.
115 Days
Classic yellow OP strain, dependable and productive early onion.
Classic yellow OP strain.
98 Days
Superior red color, long storage.
Superior red color, long storage.
118 Days
Long harvest window.
Long harvest window.
106 Days
Early yields of red onions without sacrificing size.
Early yields of red onions.
100 Days
Organic long-day storage onion.
Organic long-day storage onion.
104 Days
Early yields of red onions without sacrificing size.
Early yields of red onions.
100 Days
Unique pink specialty onion with excellent storage potential.
Unique pink specialty onion.
115 Days
Downy mildew resistance for a wider range of latitudes.
Downy mildew resistance for a wider range of latitudes.
100 Days
Widely adapted Walla Walla type for growing farther South.
Widely adapted, intermediate-day onion.
Approx 290 if late summer-sown and wintered over; 110 if spring-sown
The famous juicy, sweet regional favorite from Walla Walla, Washington.
Juicy, sweet, regional favorite.
125 Days
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