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.
                
                
                    
                
            
        
        
            
                48 Products
            
        
    
    
                
    
            
            
                                    Sort By:
                                
                                
                                    Sort By:
                                    
    
                                
                                
		
			
				
					Walla Walla Sweet
				
			
			
				
					Onion Seed
				
			
		
		
			
		
	
            
	
	The famous juicy, sweet regional favorite from Walla Walla, Washington.
            
            
         
 
     
     
     
     
     
     
     
         
     
     
     
    