Bulb Onions

Season: Cool Weather
Spring Planting Dates: Jan. 15 - March 15
(as transplants)
Fall Planting Dates: Sept. 15 - Oct. 15 
Day to Maturity: 100 - 120
Plant Size: 12" tall, 8" wide
Water Need: Medium
Seeds or Plants/100 ft.: 1/2 oz. or 400 plants
Spacing - Rows/Plants: 30" x 2-4"
Recommended Varieties: Fresh bulb: Granex 33, Grano 502, Grano 1015
Long-storing bulb: Yellow, White, Red

Onions give a good return for the space occupied and should be included in every garden in Alabama. 

If you are interested in growing large bulb onions, set out transplants in early spring, usually 4 to 8 weeks begore the anticipated last killing freeze in your area.  Transplants should be no larger than a lead pencil and should be spaced about 2 inches apart in the row.  Two rows of onions per bed are satisfactory.  When onion plants have about five leaves, sidedress with about 1/2 cup 15-0-15 fertilizer for each 10 feet of row.  Scatter the fertilizer evenly between rows and water it in.  Since onions have a limited root system, a constant supply of moisture should be available.  This is especially true once onions start to bult and enlarge. 

Bulb onions are ready for harvest when stems weaken and fall over.  Pull them from the garden and place in a protected area to dry for 1 to 2 days.  After drying, remove the tops and roots and store in a relatively dry, cool area. 


More Information:

Home Gardening - Growing Onions

Common Insect Pests
  • Aphids
  • Thrips

 
 
 
 

 

Common Diseases
  • Downy Mildew

 
 
 
 
 
 
 
 

 


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