To grow transplants, space rows 9 to 14 inches apart and sow seed at 20 to 30 pounds per acre. The seeding rate should be 60 to 70 seeds per linear foot. Plants should be ready to transplant in the field 45 to 65 days after sowing. Transplant only strong, disease-free plants to insure a healthy, uniform harvest of high quality green onions. Set plants 2 inches deep into a moist, well-prepared bed.
Transplanted onions require one to two weeks longer than direct seeded onions to reach harvest.
Green onions are seeded in the fall and late winter or early spring. Fall seeding begins in August and continues into early October. Spring and summer crop onions can be seeded from January into April. Onions sown in late February or March have the best chance of producing a spring crop of green onions under average conditions. Most of Georgia's green onions, particularly Vidalia onions, are grown as a fall crop.