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
Vibrant long-day red storage onion.
New! Vibrant long-day red storage onion.
115 Days
New
Organic long-day storage onion.
New! Organic long-day storage onion.
104 Days
New
Johnny's Exclusive
Our superior strain of this classic, long-day Italian OP.
New! Our superior strain of this classic, long-day Italian OP.
100 Days
New
Dependable short-day onion.
New! Dependable short-day onion.
150 from fall planting
New
A classic mild yellow onion with excellent size potential.
Now available organic! Huge, mild onions. Organic seed with NOP-compliant pelleting.
110 Days
New
Vibrant long-day red storage onion.
New! Vibrant long-day red storage onion. Organic seed with NOP-compliant pelleting.
115 Days
New
Downy mildew resistance for a wider range of latitudes.
New! 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
Classic yellow OP strain, dependable and productive early onion.
Classic yellow OP strain.
98 Days
The best red onion for southern growers.
The best red onion for southern growers.
165 from fall planting
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
AAS (All-America Selections) Winners
Big, mild white onions from a widely-adapted day-neutral variety.
Big, mild white onions.
109 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
Extremely long-storage yellow onion.
Extremely long storage yellow onion.
104 Days
Early yields of red onions without sacrificing size.
Early yields of red onions.
100 Days
Short-day onion with excellent color and disease resistance.
Short-day onion with excellent color and disease resistance.
160 from fall planting
Extremely long-storage yellow onion.
Extremely long storage yellow onion. Conventional seed with NOP-compliant pellet.
104 Days
